20315416

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:736

約数の個数: 48

約数和(自身を含む): 43283520

約数和(自身を除く): 22968104

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 121, 124, 242, 248, 341, 484, 677, 682, 968, 1354, 1364, 2708, 2728, 3751, 5416, 7447, 7502, 14894, 15004, 20987, 29788, 30008, 41974, 59576, 81917, 83948, 163834, 167896, 230857, 327668, 461714, 655336, 923428, 1846856, 2539427, 5078854, 10157708, 20315416]

約数ペア:

[(1, 20315416), (2, 10157708), (4, 5078854), (8, 2539427), (11, 1846856), (22, 923428), (31, 655336), (44, 461714), (62, 327668), (88, 230857), (121, 167896), (124, 163834), (242, 83948), (248, 81917), (341, 59576), (484, 41974), (677, 30008), (682, 29788), (968, 20987), (1354, 15004), (1364, 14894), (2708, 7502), (2728, 7447), (3751, 5416)]