491878920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{13709}}^1$

素因数の和:13759

約数の個数: 128

約数和(自身を含む): 1658361600

約数和(自身を除く): 1166482680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 897, 920, 1196, 1380, 1495, 1560, 1794, 2392, 2760, 2990, 3588, 4485, 5980, 7176, 8970, 11960, 13709, 17940, 27418, 35880, 41127, 54836, 68545, 82254, 109672, 137090, 164508, 178217, 205635, 274180, 315307, 329016, 356434, 411270, 534651, 548360, 630614, 712868, 822540, 891085, 945921, 1069302, 1261228, 1425736, 1576535, 1645080, 1782170, 1891842, 2138604, 2522456, 2673255, 3153070, 3564340, 3783684, 4098991, 4277208, 4729605, 5346510, 6306140, 7128680, 7567368, 8197982, 9459210, 10693020, 12296973, 12612280, 16395964, 18918420, 20494955, 21386040, 24593946, 32791928, 37836840, 40989910, 49187892, 61484865, 81979820, 98375784, 122969730, 163959640, 245939460, 491878920]

約数ペア:

[(1, 491878920), (2, 245939460), (3, 163959640), (4, 122969730), (5, 98375784), (6, 81979820), (8, 61484865), (10, 49187892), (12, 40989910), (13, 37836840), (15, 32791928), (20, 24593946), (23, 21386040), (24, 20494955), (26, 18918420), (30, 16395964), (39, 12612280), (40, 12296973), (46, 10693020), (52, 9459210), (60, 8197982), (65, 7567368), (69, 7128680), (78, 6306140), (92, 5346510), (104, 4729605), (115, 4277208), (120, 4098991), (130, 3783684), (138, 3564340), (156, 3153070), (184, 2673255), (195, 2522456), (230, 2138604), (260, 1891842), (276, 1782170), (299, 1645080), (312, 1576535), (345, 1425736), (390, 1261228), (460, 1069302), (520, 945921), (552, 891085), (598, 822540), (690, 712868), (780, 630614), (897, 548360), (920, 534651), (1196, 411270), (1380, 356434), (1495, 329016), (1560, 315307), (1794, 274180), (2392, 205635), (2760, 178217), (2990, 164508), (3588, 137090), (4485, 109672), (5980, 82254), (7176, 68545), (8970, 54836), (11960, 41127), (13709, 35880), (17940, 27418)]