20538550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 41126832

約数和(自身を除く): 20588282

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 73, 85, 146, 170, 331, 365, 425, 662, 730, 850, 1241, 1655, 1825, 2482, 3310, 3650, 5627, 6205, 8275, 11254, 12410, 16550, 24163, 28135, 31025, 48326, 56270, 62050, 120815, 140675, 241630, 281350, 410771, 604075, 821542, 1208150, 2053855, 4107710, 10269275, 20538550]

約数ペア:

[(1, 20538550), (2, 10269275), (5, 4107710), (10, 2053855), (17, 1208150), (25, 821542), (34, 604075), (50, 410771), (73, 281350), (85, 241630), (146, 140675), (170, 120815), (331, 62050), (365, 56270), (425, 48326), (662, 31025), (730, 28135), (850, 24163), (1241, 16550), (1655, 12410), (1825, 11254), (2482, 8275), (3310, 6205), (3650, 5627)]