318400480

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 192

約数和(自身を含む): 860569920

約数和(自身を除く): 542169440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 61, 68, 76, 80, 85, 95, 101, 122, 136, 152, 160, 170, 190, 202, 244, 272, 304, 305, 323, 340, 380, 404, 488, 505, 544, 608, 610, 646, 680, 760, 808, 976, 1010, 1037, 1159, 1220, 1292, 1360, 1520, 1615, 1616, 1717, 1919, 1952, 2020, 2074, 2318, 2440, 2584, 2720, 3040, 3230, 3232, 3434, 3838, 4040, 4148, 4636, 4880, 5168, 5185, 5795, 6161, 6460, 6868, 7676, 8080, 8296, 8585, 9272, 9595, 9760, 10336, 10370, 11590, 12322, 12920, 13736, 15352, 16160, 16592, 17170, 18544, 19190, 19703, 20740, 23180, 24644, 25840, 27472, 30704, 30805, 32623, 33184, 34340, 37088, 38380, 39406, 41480, 46360, 49288, 51680, 54944, 61408, 61610, 65246, 68680, 76760, 78812, 82960, 92720, 98515, 98576, 104737, 117059, 123220, 130492, 137360, 153520, 157624, 163115, 165920, 185440, 197030, 197152, 209474, 234118, 246440, 260984, 274720, 307040, 315248, 326230, 394060, 418948, 468236, 492880, 521968, 523685, 585295, 630496, 652460, 788120, 837896, 936472, 985760, 1043936, 1047370, 1170590, 1304920, 1576240, 1675792, 1872944, 1990003, 2094740, 2341180, 2609840, 3152480, 3351584, 3745888, 3980006, 4189480, 4682360, 5219680, 7960012, 8378960, 9364720, 9950015, 15920024, 16757920, 18729440, 19900030, 31840048, 39800060, 63680096, 79600120, 159200240, 318400480]

約数ペア:

[(1, 318400480), (2, 159200240), (4, 79600120), (5, 63680096), (8, 39800060), (10, 31840048), (16, 19900030), (17, 18729440), (19, 16757920), (20, 15920024), (32, 9950015), (34, 9364720), (38, 8378960), (40, 7960012), (61, 5219680), (68, 4682360), (76, 4189480), (80, 3980006), (85, 3745888), (95, 3351584), (101, 3152480), (122, 2609840), (136, 2341180), (152, 2094740), (160, 1990003), (170, 1872944), (190, 1675792), (202, 1576240), (244, 1304920), (272, 1170590), (304, 1047370), (305, 1043936), (323, 985760), (340, 936472), (380, 837896), (404, 788120), (488, 652460), (505, 630496), (544, 585295), (608, 523685), (610, 521968), (646, 492880), (680, 468236), (760, 418948), (808, 394060), (976, 326230), (1010, 315248), (1037, 307040), (1159, 274720), (1220, 260984), (1292, 246440), (1360, 234118), (1520, 209474), (1615, 197152), (1616, 197030), (1717, 185440), (1919, 165920), (1952, 163115), (2020, 157624), (2074, 153520), (2318, 137360), (2440, 130492), (2584, 123220), (2720, 117059), (3040, 104737), (3230, 98576), (3232, 98515), (3434, 92720), (3838, 82960), (4040, 78812), (4148, 76760), (4636, 68680), (4880, 65246), (5168, 61610), (5185, 61408), (5795, 54944), (6161, 51680), (6460, 49288), (6868, 46360), (7676, 41480), (8080, 39406), (8296, 38380), (8585, 37088), (9272, 34340), (9595, 33184), (9760, 32623), (10336, 30805), (10370, 30704), (11590, 27472), (12322, 25840), (12920, 24644), (13736, 23180), (15352, 20740), (16160, 19703), (16592, 19190), (17170, 18544)]