720172816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{389}}^1$

素因数の和:632

約数の個数: 80

約数和(自身を含む): 1558739520

約数和(自身を除く): 838566704

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 67, 88, 134, 157, 176, 268, 314, 389, 536, 628, 737, 778, 1072, 1256, 1474, 1556, 1727, 2512, 2948, 3112, 3454, 4279, 5896, 6224, 6908, 8558, 10519, 11792, 13816, 17116, 21038, 26063, 27632, 34232, 42076, 52126, 61073, 68464, 84152, 104252, 115709, 122146, 168304, 208504, 231418, 244292, 286693, 417008, 462836, 488584, 573386, 671803, 925672, 977168, 1146772, 1343606, 1851344, 2293544, 2687212, 4091891, 4587088, 5374424, 8183782, 10748848, 16367564, 32735128, 45010801, 65470256, 90021602, 180043204, 360086408, 720172816]

約数ペア:

[(1, 720172816), (2, 360086408), (4, 180043204), (8, 90021602), (11, 65470256), (16, 45010801), (22, 32735128), (44, 16367564), (67, 10748848), (88, 8183782), (134, 5374424), (157, 4587088), (176, 4091891), (268, 2687212), (314, 2293544), (389, 1851344), (536, 1343606), (628, 1146772), (737, 977168), (778, 925672), (1072, 671803), (1256, 573386), (1474, 488584), (1556, 462836), (1727, 417008), (2512, 286693), (2948, 244292), (3112, 231418), (3454, 208504), (4279, 168304), (5896, 122146), (6224, 115709), (6908, 104252), (8558, 84152), (10519, 68464), (11792, 61073), (13816, 52126), (17116, 42076), (21038, 34232), (26063, 27632)]