400804920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{829}}^1$

素因数の和:942

約数の個数: 192

約数和(自身を含む): 1398384000

約数和(自身を除く): 997579080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 79, 85, 90, 102, 120, 136, 153, 158, 170, 180, 204, 237, 255, 306, 316, 340, 360, 395, 408, 474, 510, 612, 632, 680, 711, 765, 790, 829, 948, 1020, 1185, 1224, 1343, 1422, 1530, 1580, 1658, 1896, 2040, 2370, 2487, 2686, 2844, 3060, 3160, 3316, 3555, 4029, 4145, 4740, 4974, 5372, 5688, 6120, 6632, 6715, 7110, 7461, 8058, 8290, 9480, 9948, 10744, 12087, 12435, 13430, 14093, 14220, 14922, 16116, 16580, 19896, 20145, 24174, 24870, 26860, 28186, 28440, 29844, 32232, 33160, 37305, 40290, 42279, 48348, 49740, 53720, 56372, 59688, 60435, 65491, 70465, 74610, 80580, 84558, 96696, 99480, 112744, 120870, 126837, 130982, 140930, 149220, 161160, 169116, 196473, 211395, 241740, 253674, 261964, 281860, 298440, 327455, 338232, 392946, 422790, 483480, 507348, 523928, 563720, 589419, 634185, 654910, 785892, 845580, 982365, 1014696, 1113347, 1178838, 1268370, 1309820, 1571784, 1691160, 1964730, 2226694, 2357676, 2536740, 2619640, 2947095, 3340041, 3929460, 4453388, 4715352, 5073480, 5566735, 5894190, 6680082, 7858920, 8906776, 10020123, 11133470, 11788380, 13360164, 16700205, 20040246, 22266940, 23576760, 26720328, 33400410, 40080492, 44533880, 50100615, 66800820, 80160984, 100201230, 133601640, 200402460, 400804920]

約数ペア:

[(1, 400804920), (2, 200402460), (3, 133601640), (4, 100201230), (5, 80160984), (6, 66800820), (8, 50100615), (9, 44533880), (10, 40080492), (12, 33400410), (15, 26720328), (17, 23576760), (18, 22266940), (20, 20040246), (24, 16700205), (30, 13360164), (34, 11788380), (36, 11133470), (40, 10020123), (45, 8906776), (51, 7858920), (60, 6680082), (68, 5894190), (72, 5566735), (79, 5073480), (85, 4715352), (90, 4453388), (102, 3929460), (120, 3340041), (136, 2947095), (153, 2619640), (158, 2536740), (170, 2357676), (180, 2226694), (204, 1964730), (237, 1691160), (255, 1571784), (306, 1309820), (316, 1268370), (340, 1178838), (360, 1113347), (395, 1014696), (408, 982365), (474, 845580), (510, 785892), (612, 654910), (632, 634185), (680, 589419), (711, 563720), (765, 523928), (790, 507348), (829, 483480), (948, 422790), (1020, 392946), (1185, 338232), (1224, 327455), (1343, 298440), (1422, 281860), (1530, 261964), (1580, 253674), (1658, 241740), (1896, 211395), (2040, 196473), (2370, 169116), (2487, 161160), (2686, 149220), (2844, 140930), (3060, 130982), (3160, 126837), (3316, 120870), (3555, 112744), (4029, 99480), (4145, 96696), (4740, 84558), (4974, 80580), (5372, 74610), (5688, 70465), (6120, 65491), (6632, 60435), (6715, 59688), (7110, 56372), (7461, 53720), (8058, 49740), (8290, 48348), (9480, 42279), (9948, 40290), (10744, 37305), (12087, 33160), (12435, 32232), (13430, 29844), (14093, 28440), (14220, 28186), (14922, 26860), (16116, 24870), (16580, 24174), (19896, 20145)]