209713660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{3617}}^1$

素因数の和:3862

約数の個数: 48

約数和(自身を含む): 476534016

約数和(自身を除く): 266820356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 223, 260, 446, 892, 1115, 2230, 2899, 3617, 4460, 5798, 7234, 11596, 14468, 14495, 18085, 28990, 36170, 47021, 57980, 72340, 94042, 188084, 235105, 470210, 806591, 940420, 1613182, 3226364, 4032955, 8065910, 10485683, 16131820, 20971366, 41942732, 52428415, 104856830, 209713660]

約数ペア:

[(1, 209713660), (2, 104856830), (4, 52428415), (5, 41942732), (10, 20971366), (13, 16131820), (20, 10485683), (26, 8065910), (52, 4032955), (65, 3226364), (130, 1613182), (223, 940420), (260, 806591), (446, 470210), (892, 235105), (1115, 188084), (2230, 94042), (2899, 72340), (3617, 57980), (4460, 47021), (5798, 36170), (7234, 28990), (11596, 18085), (14468, 14495)]