139398640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{102499}}^1$

素因数の和:102529

約数の個数: 40

約数和(自身を含む): 343170000

約数和(自身を除く): 203771360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 102499, 204998, 409996, 512495, 819992, 1024990, 1639984, 1742483, 2049980, 3484966, 4099960, 6969932, 8199920, 8712415, 13939864, 17424830, 27879728, 34849660, 69699320, 139398640]

約数ペア:

[(1, 139398640), (2, 69699320), (4, 34849660), (5, 27879728), (8, 17424830), (10, 13939864), (16, 8712415), (17, 8199920), (20, 6969932), (34, 4099960), (40, 3484966), (68, 2049980), (80, 1742483), (85, 1639984), (136, 1024990), (170, 819992), (272, 512495), (340, 409996), (680, 204998), (1360, 102499)]