890995970

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1\times {\mathrm{1063}}^1$

素因数の和:2210

約数の個数: 32

約数和(自身を含む): 1627153920

約数和(自身を除く): 736157950

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 1061, 1063, 2122, 2126, 5305, 5315, 10610, 10630, 83819, 83977, 167638, 167954, 419095, 419885, 838190, 839770, 1127843, 2255686, 5639215, 11278430, 89099597, 178199194, 445497985, 890995970]

約数ペア:

[(1, 890995970), (2, 445497985), (5, 178199194), (10, 89099597), (79, 11278430), (158, 5639215), (395, 2255686), (790, 1127843), (1061, 839770), (1063, 838190), (2122, 419885), (2126, 419095), (5305, 167954), (5315, 167638), (10610, 83977), (10630, 83819)]