680293640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{859}}^1\times {\mathrm{1523}}^1$

素因数の和:2406

約数の個数: 64

約数和(自身を含む): 1651406400

約数和(自身を除く): 971112760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 859, 1523, 1718, 3046, 3436, 4295, 6092, 6872, 7615, 8590, 11167, 12184, 15230, 17180, 19799, 22334, 30460, 34360, 39598, 44668, 55835, 60920, 79196, 89336, 98995, 111670, 158392, 197990, 223340, 395980, 446680, 791960, 1308257, 2616514, 5233028, 6541285, 10466056, 13082570, 17007341, 26165140, 34014682, 52330280, 68029364, 85036705, 136058728, 170073410, 340146820, 680293640]

約数ペア:

[(1, 680293640), (2, 340146820), (4, 170073410), (5, 136058728), (8, 85036705), (10, 68029364), (13, 52330280), (20, 34014682), (26, 26165140), (40, 17007341), (52, 13082570), (65, 10466056), (104, 6541285), (130, 5233028), (260, 2616514), (520, 1308257), (859, 791960), (1523, 446680), (1718, 395980), (3046, 223340), (3436, 197990), (4295, 158392), (6092, 111670), (6872, 98995), (7615, 89336), (8590, 79196), (11167, 60920), (12184, 55835), (15230, 44668), (17180, 39598), (19799, 34360), (22334, 30460)]