20121664016

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{677}}^1\times {\mathrm{1933}}^1$

素因数の和:2680

約数の個数: 60

約数和(自身を含む): 40364270316

約数和(自身を除く): 20242606300

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 677, 961, 1354, 1922, 1933, 2708, 3844, 3866, 5416, 7688, 7732, 10832, 15376, 15464, 20987, 30928, 41974, 59923, 83948, 119846, 167896, 239692, 335792, 479384, 650597, 958768, 1301194, 1308641, 1857613, 2602388, 2617282, 3715226, 5204776, 5234564, 7430452, 10409552, 10469128, 14860904, 20938256, 29721808, 40567871, 81135742, 162271484, 324542968, 649085936, 1257604001, 2515208002, 5030416004, 10060832008, 20121664016]

約数ペア:

[(1, 20121664016), (2, 10060832008), (4, 5030416004), (8, 2515208002), (16, 1257604001), (31, 649085936), (62, 324542968), (124, 162271484), (248, 81135742), (496, 40567871), (677, 29721808), (961, 20938256), (1354, 14860904), (1922, 10469128), (1933, 10409552), (2708, 7430452), (3844, 5234564), (3866, 5204776), (5416, 3715226), (7688, 2617282), (7732, 2602388), (10832, 1857613), (15376, 1308641), (15464, 1301194), (20987, 958768), (30928, 650597), (41974, 479384), (59923, 335792), (83948, 239692), (119846, 167896)]