18405840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1447}}^1$

素因数の和:1516

約数の個数: 80

約数和(自身を含む): 58174848

約数和(自身を除く): 39769008

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1447, 1590, 2120, 2544, 2894, 3180, 4240, 4341, 5788, 6360, 7235, 8682, 11576, 12720, 14470, 17364, 21705, 23152, 28940, 34728, 43410, 57880, 69456, 76691, 86820, 115760, 153382, 173640, 230073, 306764, 347280, 383455, 460146, 613528, 766910, 920292, 1150365, 1227056, 1533820, 1840584, 2300730, 3067640, 3681168, 4601460, 6135280, 9202920, 18405840]

約数ペア:

[(1, 18405840), (2, 9202920), (3, 6135280), (4, 4601460), (5, 3681168), (6, 3067640), (8, 2300730), (10, 1840584), (12, 1533820), (15, 1227056), (16, 1150365), (20, 920292), (24, 766910), (30, 613528), (40, 460146), (48, 383455), (53, 347280), (60, 306764), (80, 230073), (106, 173640), (120, 153382), (159, 115760), (212, 86820), (240, 76691), (265, 69456), (318, 57880), (424, 43410), (530, 34728), (636, 28940), (795, 23152), (848, 21705), (1060, 17364), (1272, 14470), (1447, 12720), (1590, 11576), (2120, 8682), (2544, 7235), (2894, 6360), (3180, 5788), (4240, 4341)]