64985280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:646

約数の個数: 112

約数和(自身を含む): 208239360

約数和(自身を除く): 143254080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 139, 160, 192, 240, 278, 320, 417, 480, 487, 556, 695, 834, 960, 974, 1112, 1390, 1461, 1668, 1948, 2085, 2224, 2435, 2780, 2922, 3336, 3896, 4170, 4448, 4870, 5560, 5844, 6672, 7305, 7792, 8340, 8896, 9740, 11120, 11688, 13344, 14610, 15584, 16680, 19480, 22240, 23376, 26688, 29220, 31168, 33360, 38960, 44480, 46752, 58440, 66720, 67693, 77920, 93504, 116880, 133440, 135386, 155840, 203079, 233760, 270772, 338465, 406158, 467520, 541544, 676930, 812316, 1015395, 1083088, 1353860, 1624632, 2030790, 2166176, 2707720, 3249264, 4061580, 4332352, 5415440, 6498528, 8123160, 10830880, 12997056, 16246320, 21661760, 32492640, 64985280]

約数ペア:

[(1, 64985280), (2, 32492640), (3, 21661760), (4, 16246320), (5, 12997056), (6, 10830880), (8, 8123160), (10, 6498528), (12, 5415440), (15, 4332352), (16, 4061580), (20, 3249264), (24, 2707720), (30, 2166176), (32, 2030790), (40, 1624632), (48, 1353860), (60, 1083088), (64, 1015395), (80, 812316), (96, 676930), (120, 541544), (139, 467520), (160, 406158), (192, 338465), (240, 270772), (278, 233760), (320, 203079), (417, 155840), (480, 135386), (487, 133440), (556, 116880), (695, 93504), (834, 77920), (960, 67693), (974, 66720), (1112, 58440), (1390, 46752), (1461, 44480), (1668, 38960), (1948, 33360), (2085, 31168), (2224, 29220), (2435, 26688), (2780, 23376), (2922, 22240), (3336, 19480), (3896, 16680), (4170, 15584), (4448, 14610), (4870, 13344), (5560, 11688), (5844, 11120), (6672, 9740), (7305, 8896), (7792, 8340)]