920477740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{72251}}^1$

素因数の和:72287

約数の個数: 72

約数和(自身を含む): 2421598032

約数和(自身を除く): 1501120292

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 72251, 144502, 289004, 361255, 505757, 722510, 939263, 1011514, 1445020, 1878526, 2023028, 2528785, 3540299, 3757052, 4696315, 5057570, 6574841, 7080598, 9392630, 10115140, 13149682, 14161196, 17701495, 18785260, 26299364, 32874205, 35402990, 46023887, 65748410, 70805980, 92047774, 131496820, 184095548, 230119435, 460238870, 920477740]

約数ペア:

[(1, 920477740), (2, 460238870), (4, 230119435), (5, 184095548), (7, 131496820), (10, 92047774), (13, 70805980), (14, 65748410), (20, 46023887), (26, 35402990), (28, 32874205), (35, 26299364), (49, 18785260), (52, 17701495), (65, 14161196), (70, 13149682), (91, 10115140), (98, 9392630), (130, 7080598), (140, 6574841), (182, 5057570), (196, 4696315), (245, 3757052), (260, 3540299), (364, 2528785), (455, 2023028), (490, 1878526), (637, 1445020), (910, 1011514), (980, 939263), (1274, 722510), (1820, 505757), (2548, 361255), (3185, 289004), (6370, 144502), (12740, 72251)]