1280996830

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1\times {\mathrm{2393}}^1$

素因数の和:2868

約数の個数: 32

約数和(自身を含む): 2326968000

約数和(自身を除く): 1045971170

約数列:

[1, 2, 5, 10, 199, 269, 398, 538, 995, 1345, 1990, 2393, 2690, 4786, 11965, 23930, 53531, 107062, 267655, 476207, 535310, 643717, 952414, 1287434, 2381035, 3218585, 4762070, 6437170, 128099683, 256199366, 640498415, 1280996830]

約数ペア:

[(1, 1280996830), (2, 640498415), (5, 256199366), (10, 128099683), (199, 6437170), (269, 4762070), (398, 3218585), (538, 2381035), (995, 1287434), (1345, 952414), (1990, 643717), (2393, 535310), (2690, 476207), (4786, 267655), (11965, 107062), (23930, 53531)]