8389420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{787}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 19460448

約数和(自身を除く): 11071028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 787, 820, 1066, 1574, 2132, 2665, 3148, 3935, 5330, 7870, 10231, 10660, 15740, 20462, 32267, 40924, 51155, 64534, 102310, 129068, 161335, 204620, 322670, 419471, 645340, 838942, 1677884, 2097355, 4194710, 8389420]

約数ペア:

[(1, 8389420), (2, 4194710), (4, 2097355), (5, 1677884), (10, 838942), (13, 645340), (20, 419471), (26, 322670), (41, 204620), (52, 161335), (65, 129068), (82, 102310), (130, 64534), (164, 51155), (205, 40924), (260, 32267), (410, 20462), (533, 15740), (787, 10660), (820, 10231), (1066, 7870), (1574, 5330), (2132, 3935), (2665, 3148)]