405401880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:242

約数の個数: 256

約数和(自身を含む): 1381847040

約数和(自身を除く): 976445160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 31, 39, 40, 52, 60, 62, 65, 78, 83, 93, 101, 104, 120, 124, 130, 155, 156, 166, 186, 195, 202, 248, 249, 260, 303, 310, 312, 332, 372, 390, 403, 404, 415, 465, 498, 505, 520, 606, 620, 664, 744, 780, 806, 808, 830, 930, 996, 1010, 1079, 1209, 1212, 1240, 1245, 1313, 1515, 1560, 1612, 1660, 1860, 1992, 2015, 2020, 2158, 2418, 2424, 2490, 2573, 2626, 3030, 3131, 3224, 3237, 3320, 3720, 3939, 4030, 4040, 4316, 4836, 4980, 5146, 5252, 5395, 6045, 6060, 6262, 6474, 6565, 7719, 7878, 8060, 8383, 8632, 9393, 9672, 9960, 10292, 10504, 10790, 12090, 12120, 12524, 12865, 12948, 13130, 15438, 15655, 15756, 16120, 16185, 16766, 18786, 19695, 20584, 21580, 24180, 25048, 25149, 25730, 25896, 26260, 30876, 31310, 31512, 32370, 33449, 33532, 37572, 38595, 39390, 40703, 41915, 43160, 46965, 48360, 50298, 51460, 52520, 61752, 62620, 64740, 66898, 67064, 75144, 77190, 78780, 81406, 83830, 93930, 100347, 100596, 102920, 108979, 122109, 125240, 125745, 129480, 133796, 154380, 157560, 162812, 167245, 167660, 187860, 200694, 201192, 203515, 217958, 244218, 251490, 259873, 267592, 308760, 325624, 326937, 334490, 335320, 375720, 401388, 407030, 435916, 488436, 501735, 502980, 519746, 544895, 610545, 653874, 668980, 779619, 802776, 814060, 871832, 976872, 1003470, 1005960, 1039492, 1089790, 1221090, 1299365, 1307748, 1337960, 1559238, 1628120, 1634685, 2006940, 2078984, 2179580, 2442180, 2598730, 2615496, 3118476, 3269370, 3378349, 3898095, 4013880, 4359160, 4884360, 5197460, 6236952, 6538740, 6756698, 7796190, 10135047, 10394920, 13077480, 13513396, 15592380, 16891745, 20270094, 27026792, 31184760, 33783490, 40540188, 50675235, 67566980, 81080376, 101350470, 135133960, 202700940, 405401880]

約数ペア:

[(1, 405401880), (2, 202700940), (3, 135133960), (4, 101350470), (5, 81080376), (6, 67566980), (8, 50675235), (10, 40540188), (12, 33783490), (13, 31184760), (15, 27026792), (20, 20270094), (24, 16891745), (26, 15592380), (30, 13513396), (31, 13077480), (39, 10394920), (40, 10135047), (52, 7796190), (60, 6756698), (62, 6538740), (65, 6236952), (78, 5197460), (83, 4884360), (93, 4359160), (101, 4013880), (104, 3898095), (120, 3378349), (124, 3269370), (130, 3118476), (155, 2615496), (156, 2598730), (166, 2442180), (186, 2179580), (195, 2078984), (202, 2006940), (248, 1634685), (249, 1628120), (260, 1559238), (303, 1337960), (310, 1307748), (312, 1299365), (332, 1221090), (372, 1089790), (390, 1039492), (403, 1005960), (404, 1003470), (415, 976872), (465, 871832), (498, 814060), (505, 802776), (520, 779619), (606, 668980), (620, 653874), (664, 610545), (744, 544895), (780, 519746), (806, 502980), (808, 501735), (830, 488436), (930, 435916), (996, 407030), (1010, 401388), (1079, 375720), (1209, 335320), (1212, 334490), (1240, 326937), (1245, 325624), (1313, 308760), (1515, 267592), (1560, 259873), (1612, 251490), (1660, 244218), (1860, 217958), (1992, 203515), (2015, 201192), (2020, 200694), (2158, 187860), (2418, 167660), (2424, 167245), (2490, 162812), (2573, 157560), (2626, 154380), (3030, 133796), (3131, 129480), (3224, 125745), (3237, 125240), (3320, 122109), (3720, 108979), (3939, 102920), (4030, 100596), (4040, 100347), (4316, 93930), (4836, 83830), (4980, 81406), (5146, 78780), (5252, 77190), (5395, 75144), (6045, 67064), (6060, 66898), (6262, 64740), (6474, 62620), (6565, 61752), (7719, 52520), (7878, 51460), (8060, 50298), (8383, 48360), (8632, 46965), (9393, 43160), (9672, 41915), (9960, 40703), (10292, 39390), (10504, 38595), (10790, 37572), (12090, 33532), (12120, 33449), (12524, 32370), (12865, 31512), (12948, 31310), (13130, 30876), (15438, 26260), (15655, 25896), (15756, 25730), (16120, 25149), (16185, 25048), (16766, 24180), (18786, 21580), (19695, 20584)]