72820880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{997}}^1$

素因数の和:1104

約数の個数: 80

約数和(自身を含む): 187113024

約数和(自身を除く): 114292144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 83, 88, 110, 166, 176, 220, 332, 415, 440, 664, 830, 880, 913, 997, 1328, 1660, 1826, 1994, 3320, 3652, 3988, 4565, 4985, 6640, 7304, 7976, 9130, 9970, 10967, 14608, 15952, 18260, 19940, 21934, 36520, 39880, 43868, 54835, 73040, 79760, 82751, 87736, 109670, 165502, 175472, 219340, 331004, 413755, 438680, 662008, 827510, 877360, 910261, 1324016, 1655020, 1820522, 3310040, 3641044, 4551305, 6620080, 7282088, 9102610, 14564176, 18205220, 36410440, 72820880]

約数ペア:

[(1, 72820880), (2, 36410440), (4, 18205220), (5, 14564176), (8, 9102610), (10, 7282088), (11, 6620080), (16, 4551305), (20, 3641044), (22, 3310040), (40, 1820522), (44, 1655020), (55, 1324016), (80, 910261), (83, 877360), (88, 827510), (110, 662008), (166, 438680), (176, 413755), (220, 331004), (332, 219340), (415, 175472), (440, 165502), (664, 109670), (830, 87736), (880, 82751), (913, 79760), (997, 73040), (1328, 54835), (1660, 43868), (1826, 39880), (1994, 36520), (3320, 21934), (3652, 19940), (3988, 18260), (4565, 15952), (4985, 14608), (6640, 10967), (7304, 9970), (7976, 9130)]