31047980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 68040000

約数和(自身を除く): 36992020

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 269, 290, 398, 538, 580, 796, 995, 1076, 1345, 1990, 2690, 3980, 5380, 5771, 7801, 11542, 15602, 23084, 28855, 31204, 39005, 53531, 57710, 78010, 107062, 115420, 156020, 214124, 267655, 535310, 1070620, 1552399, 3104798, 6209596, 7761995, 15523990, 31047980]

約数ペア:

[(1, 31047980), (2, 15523990), (4, 7761995), (5, 6209596), (10, 3104798), (20, 1552399), (29, 1070620), (58, 535310), (116, 267655), (145, 214124), (199, 156020), (269, 115420), (290, 107062), (398, 78010), (538, 57710), (580, 53531), (796, 39005), (995, 31204), (1076, 28855), (1345, 23084), (1990, 15602), (2690, 11542), (3980, 7801), (5380, 5771)]