64117920

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 210198240

約数和(自身を除く): 146080320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 80, 93, 96, 120, 124, 139, 155, 160, 186, 240, 248, 278, 310, 372, 417, 465, 480, 496, 556, 620, 695, 744, 834, 930, 961, 992, 1112, 1240, 1390, 1488, 1668, 1860, 1922, 2085, 2224, 2480, 2780, 2883, 2976, 3336, 3720, 3844, 4170, 4309, 4448, 4805, 4960, 5560, 5766, 6672, 7440, 7688, 8340, 8618, 9610, 11120, 11532, 12927, 13344, 14415, 14880, 15376, 16680, 17236, 19220, 21545, 22240, 23064, 25854, 28830, 30752, 33360, 34472, 38440, 43090, 46128, 51708, 57660, 64635, 66720, 68944, 76880, 86180, 92256, 103416, 115320, 129270, 133579, 137888, 153760, 172360, 206832, 230640, 258540, 267158, 344720, 400737, 413664, 461280, 517080, 534316, 667895, 689440, 801474, 1034160, 1068632, 1335790, 1602948, 2003685, 2068320, 2137264, 2671580, 3205896, 4007370, 4274528, 5343160, 6411792, 8014740, 10686320, 12823584, 16029480, 21372640, 32058960, 64117920]

約数ペア:

[(1, 64117920), (2, 32058960), (3, 21372640), (4, 16029480), (5, 12823584), (6, 10686320), (8, 8014740), (10, 6411792), (12, 5343160), (15, 4274528), (16, 4007370), (20, 3205896), (24, 2671580), (30, 2137264), (31, 2068320), (32, 2003685), (40, 1602948), (48, 1335790), (60, 1068632), (62, 1034160), (80, 801474), (93, 689440), (96, 667895), (120, 534316), (124, 517080), (139, 461280), (155, 413664), (160, 400737), (186, 344720), (240, 267158), (248, 258540), (278, 230640), (310, 206832), (372, 172360), (417, 153760), (465, 137888), (480, 133579), (496, 129270), (556, 115320), (620, 103416), (695, 92256), (744, 86180), (834, 76880), (930, 68944), (961, 66720), (992, 64635), (1112, 57660), (1240, 51708), (1390, 46128), (1488, 43090), (1668, 38440), (1860, 34472), (1922, 33360), (2085, 30752), (2224, 28830), (2480, 25854), (2780, 23064), (2883, 22240), (2976, 21545), (3336, 19220), (3720, 17236), (3844, 16680), (4170, 15376), (4309, 14880), (4448, 14415), (4805, 13344), (4960, 12927), (5560, 11532), (5766, 11120), (6672, 9610), (7440, 8618), (7688, 8340)]