634934840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{163643}}^1$

素因数の和:163751

約数の個数: 32

約数和(自身を含む): 1443340080

約数和(自身を除く): 808405240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 163643, 327286, 654572, 818215, 1309144, 1636430, 3272860, 6545720, 15873371, 31746742, 63493484, 79366855, 126986968, 158733710, 317467420, 634934840]

約数ペア:

[(1, 634934840), (2, 317467420), (4, 158733710), (5, 126986968), (8, 79366855), (10, 63493484), (20, 31746742), (40, 15873371), (97, 6545720), (194, 3272860), (388, 1636430), (485, 1309144), (776, 818215), (970, 654572), (1940, 327286), (3880, 163643)]