20210790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1723}}^1$

素因数の和:1773

約数の個数: 64

約数和(自身を含む): 53623296

約数和(自身を除く): 33412506

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 170, 230, 255, 345, 391, 510, 690, 782, 1173, 1723, 1955, 2346, 3446, 3910, 5169, 5865, 8615, 10338, 11730, 17230, 25845, 29291, 39629, 51690, 58582, 79258, 87873, 118887, 146455, 175746, 198145, 237774, 292910, 396290, 439365, 594435, 673693, 878730, 1188870, 1347386, 2021079, 3368465, 4042158, 6736930, 10105395, 20210790]

約数ペア:

[(1, 20210790), (2, 10105395), (3, 6736930), (5, 4042158), (6, 3368465), (10, 2021079), (15, 1347386), (17, 1188870), (23, 878730), (30, 673693), (34, 594435), (46, 439365), (51, 396290), (69, 292910), (85, 237774), (102, 198145), (115, 175746), (138, 146455), (170, 118887), (230, 87873), (255, 79258), (345, 58582), (391, 51690), (510, 39629), (690, 29291), (782, 25845), (1173, 17230), (1723, 11730), (1955, 10338), (2346, 8615), (3446, 5865), (3910, 5169)]