7907721640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1459}}^1\times {\mathrm{1489}}^1$

素因数の和:2979

約数の個数: 128

約数和(自身を含む): 21928032000

約数和(自身を除く): 14020310360

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1459, 1489, 1820, 2918, 2978, 3640, 5836, 5956, 7295, 7445, 10213, 10423, 11672, 11912, 14590, 14890, 18967, 19357, 20426, 20846, 29180, 29780, 37934, 38714, 40852, 41692, 51065, 52115, 58360, 59560, 75868, 77428, 81704, 83384, 94835, 96785, 102130, 104230, 132769, 135499, 151736, 154856, 189670, 193570, 204260, 208460, 265538, 270998, 379340, 387140, 408520, 416920, 531076, 541996, 663845, 677495, 758680, 774280, 1062152, 1083992, 1327690, 1354990, 2172451, 2655380, 2709980, 4344902, 5310760, 5419960, 8689804, 10862255, 15207157, 17379608, 21724510, 28241863, 30414314, 43449020, 56483726, 60828628, 76035785, 86898040, 112967452, 121657256, 141209315, 152071570, 197693041, 225934904, 282418630, 304143140, 395386082, 564837260, 608286280, 790772164, 988465205, 1129674520, 1581544328, 1976930410, 3953860820, 7907721640]

約数ペア:

[(1, 7907721640), (2, 3953860820), (4, 1976930410), (5, 1581544328), (7, 1129674520), (8, 988465205), (10, 790772164), (13, 608286280), (14, 564837260), (20, 395386082), (26, 304143140), (28, 282418630), (35, 225934904), (40, 197693041), (52, 152071570), (56, 141209315), (65, 121657256), (70, 112967452), (91, 86898040), (104, 76035785), (130, 60828628), (140, 56483726), (182, 43449020), (260, 30414314), (280, 28241863), (364, 21724510), (455, 17379608), (520, 15207157), (728, 10862255), (910, 8689804), (1459, 5419960), (1489, 5310760), (1820, 4344902), (2918, 2709980), (2978, 2655380), (3640, 2172451), (5836, 1354990), (5956, 1327690), (7295, 1083992), (7445, 1062152), (10213, 774280), (10423, 758680), (11672, 677495), (11912, 663845), (14590, 541996), (14890, 531076), (18967, 416920), (19357, 408520), (20426, 387140), (20846, 379340), (29180, 270998), (29780, 265538), (37934, 208460), (38714, 204260), (40852, 193570), (41692, 189670), (51065, 154856), (52115, 151736), (58360, 135499), (59560, 132769), (75868, 104230), (77428, 102130), (81704, 96785), (83384, 94835)]