420890984

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{293}}^1$

素因数の和:570

約数の個数: 64

約数和(自身を含む): 852647040

約数和(自身を除く): 431756056

約数列:

[1, 2, 4, 8, 23, 37, 46, 74, 92, 148, 184, 211, 293, 296, 422, 586, 844, 851, 1172, 1688, 1702, 2344, 3404, 4853, 6739, 6808, 7807, 9706, 10841, 13478, 15614, 19412, 21682, 26956, 31228, 38824, 43364, 53912, 61823, 62456, 86728, 123646, 179561, 247292, 249343, 359122, 494584, 498686, 718244, 997372, 1421929, 1436488, 1994744, 2287451, 2843858, 4574902, 5687716, 9149804, 11375432, 18299608, 52611373, 105222746, 210445492, 420890984]

約数ペア:

[(1, 420890984), (2, 210445492), (4, 105222746), (8, 52611373), (23, 18299608), (37, 11375432), (46, 9149804), (74, 5687716), (92, 4574902), (148, 2843858), (184, 2287451), (211, 1994744), (293, 1436488), (296, 1421929), (422, 997372), (586, 718244), (844, 498686), (851, 494584), (1172, 359122), (1688, 249343), (1702, 247292), (2344, 179561), (3404, 123646), (4853, 86728), (6739, 62456), (6808, 61823), (7807, 53912), (9706, 43364), (10841, 38824), (13478, 31228), (15614, 26956), (19412, 21682)]