19734920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 48816000

約数和(自身を除く): 29081080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1129, 1748, 2185, 2258, 3496, 4370, 4516, 5645, 8740, 9032, 11290, 17480, 21451, 22580, 25967, 42902, 45160, 51934, 85804, 103868, 107255, 129835, 171608, 207736, 214510, 259670, 429020, 493373, 519340, 858040, 986746, 1038680, 1973492, 2466865, 3946984, 4933730, 9867460, 19734920]

約数ペア:

[(1, 19734920), (2, 9867460), (4, 4933730), (5, 3946984), (8, 2466865), (10, 1973492), (19, 1038680), (20, 986746), (23, 858040), (38, 519340), (40, 493373), (46, 429020), (76, 259670), (92, 214510), (95, 207736), (115, 171608), (152, 129835), (184, 107255), (190, 103868), (230, 85804), (380, 51934), (437, 45160), (460, 42902), (760, 25967), (874, 22580), (920, 21451), (1129, 17480), (1748, 11290), (2185, 9032), (2258, 8740), (3496, 5645), (4370, 4516)]