19499680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 49968576

約数和(自身を除く): 30468896

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 67, 68, 80, 85, 107, 134, 136, 160, 170, 214, 268, 272, 335, 340, 428, 535, 536, 544, 670, 680, 856, 1070, 1072, 1139, 1340, 1360, 1712, 1819, 2140, 2144, 2278, 2680, 2720, 3424, 3638, 4280, 4556, 5360, 5695, 7169, 7276, 8560, 9095, 9112, 10720, 11390, 14338, 14552, 17120, 18190, 18224, 22780, 28676, 29104, 35845, 36380, 36448, 45560, 57352, 58208, 71690, 72760, 91120, 114704, 121873, 143380, 145520, 182240, 229408, 243746, 286760, 291040, 487492, 573520, 609365, 974984, 1147040, 1218730, 1949968, 2437460, 3899936, 4874920, 9749840, 19499680]

約数ペア:

[(1, 19499680), (2, 9749840), (4, 4874920), (5, 3899936), (8, 2437460), (10, 1949968), (16, 1218730), (17, 1147040), (20, 974984), (32, 609365), (34, 573520), (40, 487492), (67, 291040), (68, 286760), (80, 243746), (85, 229408), (107, 182240), (134, 145520), (136, 143380), (160, 121873), (170, 114704), (214, 91120), (268, 72760), (272, 71690), (335, 58208), (340, 57352), (428, 45560), (535, 36448), (536, 36380), (544, 35845), (670, 29104), (680, 28676), (856, 22780), (1070, 18224), (1072, 18190), (1139, 17120), (1340, 14552), (1360, 14338), (1712, 11390), (1819, 10720), (2140, 9112), (2144, 9095), (2278, 8560), (2680, 7276), (2720, 7169), (3424, 5695), (3638, 5360), (4280, 4556)]