89970920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173021}}^1$

素因数の和:173045

約数の個数: 32

約数和(自身を含む): 218007720

約数和(自身を除く): 128036800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 173021, 346042, 692084, 865105, 1384168, 1730210, 2249273, 3460420, 4498546, 6920840, 8997092, 11246365, 17994184, 22492730, 44985460, 89970920]

約数ペア:

[(1, 89970920), (2, 44985460), (4, 22492730), (5, 17994184), (8, 11246365), (10, 8997092), (13, 6920840), (20, 4498546), (26, 3460420), (40, 2249273), (52, 1730210), (65, 1384168), (104, 865105), (130, 692084), (260, 346042), (520, 173021)]