25503080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 60065280

約数和(自身を除く): 34562200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 157, 248, 262, 310, 314, 524, 620, 628, 655, 785, 1048, 1240, 1256, 1310, 1570, 2620, 3140, 4061, 4867, 5240, 6280, 8122, 9734, 16244, 19468, 20305, 20567, 24335, 32488, 38936, 40610, 41134, 48670, 81220, 82268, 97340, 102835, 162440, 164536, 194680, 205670, 411340, 637577, 822680, 1275154, 2550308, 3187885, 5100616, 6375770, 12751540, 25503080]

約数ペア:

[(1, 25503080), (2, 12751540), (4, 6375770), (5, 5100616), (8, 3187885), (10, 2550308), (20, 1275154), (31, 822680), (40, 637577), (62, 411340), (124, 205670), (131, 194680), (155, 164536), (157, 162440), (248, 102835), (262, 97340), (310, 82268), (314, 81220), (524, 48670), (620, 41134), (628, 40610), (655, 38936), (785, 32488), (1048, 24335), (1240, 20567), (1256, 20305), (1310, 19468), (1570, 16244), (2620, 9734), (3140, 8122), (4061, 6280), (4867, 5240)]