207968240

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:474

約数の個数: 80

約数和(自身を含む): 495504000

約数和(自身を除く): 287535760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 149, 239, 292, 298, 365, 478, 584, 596, 730, 745, 956, 1168, 1192, 1195, 1460, 1490, 1912, 2384, 2390, 2920, 2980, 3824, 4780, 5840, 5960, 9560, 10877, 11920, 17447, 19120, 21754, 34894, 35611, 43508, 54385, 69788, 71222, 87016, 87235, 108770, 139576, 142444, 174032, 174470, 178055, 217540, 279152, 284888, 348940, 356110, 435080, 569776, 697880, 712220, 870160, 1395760, 1424440, 2599603, 2848880, 5199206, 10398412, 12998015, 20796824, 25996030, 41593648, 51992060, 103984120, 207968240]

約数ペア:

[(1, 207968240), (2, 103984120), (4, 51992060), (5, 41593648), (8, 25996030), (10, 20796824), (16, 12998015), (20, 10398412), (40, 5199206), (73, 2848880), (80, 2599603), (146, 1424440), (149, 1395760), (239, 870160), (292, 712220), (298, 697880), (365, 569776), (478, 435080), (584, 356110), (596, 348940), (730, 284888), (745, 279152), (956, 217540), (1168, 178055), (1192, 174470), (1195, 174032), (1460, 142444), (1490, 139576), (1912, 108770), (2384, 87235), (2390, 87016), (2920, 71222), (2980, 69788), (3824, 54385), (4780, 43508), (5840, 35611), (5960, 34894), (9560, 21754), (10877, 19120), (11920, 17447)]