205380280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10331}}^1$

素因数の和:10420

約数の個数: 64

約数和(自身を含む): 535610880

約数和(自身を除く): 330230600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 10331, 19880, 20662, 41324, 51655, 72317, 82648, 103310, 144634, 206620, 289268, 361585, 413240, 578536, 723170, 733501, 1446340, 1467002, 2892680, 2934004, 3667505, 5134507, 5868008, 7335010, 10269014, 14670020, 20538028, 25672535, 29340040, 41076056, 51345070, 102690140, 205380280]

約数ペア:

[(1, 205380280), (2, 102690140), (4, 51345070), (5, 41076056), (7, 29340040), (8, 25672535), (10, 20538028), (14, 14670020), (20, 10269014), (28, 7335010), (35, 5868008), (40, 5134507), (56, 3667505), (70, 2934004), (71, 2892680), (140, 1467002), (142, 1446340), (280, 733501), (284, 723170), (355, 578536), (497, 413240), (568, 361585), (710, 289268), (994, 206620), (1420, 144634), (1988, 103310), (2485, 82648), (2840, 72317), (3976, 51655), (4970, 41324), (9940, 20662), (10331, 19880)]