20902979968

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{42013}}^1$

素因数の和:42076

約数の個数: 96

約数和(自身を含む): 47053999440

約数和(自身を除く): 26151019472

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 64, 92, 104, 128, 169, 184, 208, 299, 338, 368, 416, 598, 676, 736, 832, 1196, 1352, 1472, 1664, 2392, 2704, 2944, 3887, 4784, 5408, 7774, 9568, 10816, 15548, 19136, 21632, 31096, 38272, 42013, 62192, 84026, 124384, 168052, 248768, 336104, 497536, 546169, 672208, 966299, 1092338, 1344416, 1932598, 2184676, 2688832, 3865196, 4369352, 5377664, 7100197, 7730392, 8738704, 12561887, 14200394, 15460784, 17477408, 25123774, 28400788, 30921568, 34954816, 50247548, 56801576, 61843136, 69909632, 100495096, 113603152, 123686272, 163304531, 200990192, 227206304, 326609062, 401980384, 454412608, 653218124, 803960768, 908825216, 1306436248, 1607921536, 2612872496, 5225744992, 10451489984, 20902979968]

約数ペア:

[(1, 20902979968), (2, 10451489984), (4, 5225744992), (8, 2612872496), (13, 1607921536), (16, 1306436248), (23, 908825216), (26, 803960768), (32, 653218124), (46, 454412608), (52, 401980384), (64, 326609062), (92, 227206304), (104, 200990192), (128, 163304531), (169, 123686272), (184, 113603152), (208, 100495096), (299, 69909632), (338, 61843136), (368, 56801576), (416, 50247548), (598, 34954816), (676, 30921568), (736, 28400788), (832, 25123774), (1196, 17477408), (1352, 15460784), (1472, 14200394), (1664, 12561887), (2392, 8738704), (2704, 7730392), (2944, 7100197), (3887, 5377664), (4784, 4369352), (5408, 3865196), (7774, 2688832), (9568, 2184676), (10816, 1932598), (15548, 1344416), (19136, 1092338), (21632, 966299), (31096, 672208), (38272, 546169), (42013, 497536), (62192, 336104), (84026, 248768), (124384, 168052)]