256853600

素因数分解:

$2^5\times 5^2\times {\mathrm{31}}^1\times {\mathrm{10357}}^1$

素因数の和:10408

約数の個数: 72

約数和(自身を含む): 647333568

約数和(自身を除く): 390479968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 155, 160, 200, 248, 310, 400, 496, 620, 775, 800, 992, 1240, 1550, 2480, 3100, 4960, 6200, 10357, 12400, 20714, 24800, 41428, 51785, 82856, 103570, 165712, 207140, 258925, 321067, 331424, 414280, 517850, 642134, 828560, 1035700, 1284268, 1605335, 1657120, 2071400, 2568536, 3210670, 4142800, 5137072, 6421340, 8026675, 8285600, 10274144, 12842680, 16053350, 25685360, 32106700, 51370720, 64213400, 128426800, 256853600]

約数ペア:

[(1, 256853600), (2, 128426800), (4, 64213400), (5, 51370720), (8, 32106700), (10, 25685360), (16, 16053350), (20, 12842680), (25, 10274144), (31, 8285600), (32, 8026675), (40, 6421340), (50, 5137072), (62, 4142800), (80, 3210670), (100, 2568536), (124, 2071400), (155, 1657120), (160, 1605335), (200, 1284268), (248, 1035700), (310, 828560), (400, 642134), (496, 517850), (620, 414280), (775, 331424), (800, 321067), (992, 258925), (1240, 207140), (1550, 165712), (2480, 103570), (3100, 82856), (4960, 51785), (6200, 41428), (10357, 24800), (12400, 20714)]