262485680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2094

約数の個数: 80

約数和(自身を含む): 642173184

約数和(自身を除く): 379687504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 53, 62, 80, 106, 124, 155, 212, 248, 265, 310, 424, 496, 530, 620, 848, 1060, 1240, 1643, 1997, 2120, 2480, 3286, 3994, 4240, 6572, 7988, 8215, 9985, 13144, 15976, 16430, 19970, 26288, 31952, 32860, 39940, 61907, 65720, 79880, 105841, 123814, 131440, 159760, 211682, 247628, 309535, 423364, 495256, 529205, 619070, 846728, 990512, 1058410, 1238140, 1693456, 2116820, 2476280, 3281071, 4233640, 4952560, 6562142, 8467280, 13124284, 16405355, 26248568, 32810710, 52497136, 65621420, 131242840, 262485680]

約数ペア:

[(1, 262485680), (2, 131242840), (4, 65621420), (5, 52497136), (8, 32810710), (10, 26248568), (16, 16405355), (20, 13124284), (31, 8467280), (40, 6562142), (53, 4952560), (62, 4233640), (80, 3281071), (106, 2476280), (124, 2116820), (155, 1693456), (212, 1238140), (248, 1058410), (265, 990512), (310, 846728), (424, 619070), (496, 529205), (530, 495256), (620, 423364), (848, 309535), (1060, 247628), (1240, 211682), (1643, 159760), (1997, 131440), (2120, 123814), (2480, 105841), (3286, 79880), (3994, 65720), (4240, 61907), (6572, 39940), (7988, 32860), (8215, 31952), (9985, 26288), (13144, 19970), (15976, 16430)]