20895777664

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{309769}}^1$

素因数の和:309831

約数の個数: 64

約数和(自身を含む): 45499017600

約数和(自身を除く): 24603239936

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 248, 272, 496, 527, 544, 992, 1054, 1088, 1984, 2108, 2176, 3968, 4216, 8432, 16864, 33728, 67456, 309769, 619538, 1239076, 2478152, 4956304, 5266073, 9602839, 9912608, 10532146, 19205678, 19825216, 21064292, 38411356, 39650432, 42128584, 76822712, 84257168, 153645424, 163248263, 168514336, 307290848, 326496526, 337028672, 614581696, 652993052, 674057344, 1229163392, 1305986104, 2611972208, 5223944416, 10447888832, 20895777664]

約数ペア:

[(1, 20895777664), (2, 10447888832), (4, 5223944416), (8, 2611972208), (16, 1305986104), (17, 1229163392), (31, 674057344), (32, 652993052), (34, 614581696), (62, 337028672), (64, 326496526), (68, 307290848), (124, 168514336), (128, 163248263), (136, 153645424), (248, 84257168), (272, 76822712), (496, 42128584), (527, 39650432), (544, 38411356), (992, 21064292), (1054, 19825216), (1088, 19205678), (1984, 10532146), (2108, 9912608), (2176, 9602839), (3968, 5266073), (4216, 4956304), (8432, 2478152), (16864, 1239076), (33728, 619538), (67456, 309769)]