642950230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{159541}}^1$

素因数の和:159592

約数の個数: 32

約数和(自身を含む): 1286546688

約数和(自身を除く): 643596458

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 159541, 319082, 797705, 1595410, 2074033, 4148066, 4945771, 9891542, 10370165, 20740330, 24728855, 49457710, 64295023, 128590046, 321475115, 642950230]

約数ペア:

[(1, 642950230), (2, 321475115), (5, 128590046), (10, 64295023), (13, 49457710), (26, 24728855), (31, 20740330), (62, 10370165), (65, 9891542), (130, 4945771), (155, 4148066), (310, 2074033), (403, 1595410), (806, 797705), (2015, 319082), (4030, 159541)]