20120681644

素因数分解:

$2^2\times 7^2\times {\mathrm{1151}}^1\times {\mathrm{89189}}^1$

素因数の和:90358

約数の個数: 36

約数和(自身を含む): 40996005120

約数和(自身を除く): 20875323476

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1151, 2302, 4604, 8057, 16114, 32228, 56399, 89189, 112798, 178378, 225596, 356756, 624323, 1248646, 2497292, 4370261, 8740522, 17481044, 102656539, 205313078, 410626156, 718595773, 1437191546, 2874383092, 5030170411, 10060340822, 20120681644]

約数ペア:

[(1, 20120681644), (2, 10060340822), (4, 5030170411), (7, 2874383092), (14, 1437191546), (28, 718595773), (49, 410626156), (98, 205313078), (196, 102656539), (1151, 17481044), (2302, 8740522), (4604, 4370261), (8057, 2497292), (16114, 1248646), (32228, 624323), (56399, 356756), (89189, 225596), (112798, 178378)]