30812990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{563}}^1$

素因数の和:1004

約数の個数: 32

約数和(自身を含む): 59978016

約数和(自身を除く): 29165026

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 563, 842, 1126, 2105, 2815, 4210, 5473, 5630, 7319, 10946, 14638, 27365, 36595, 54730, 73190, 237023, 474046, 1185115, 2370230, 3081299, 6162598, 15406495, 30812990]

約数ペア:

[(1, 30812990), (2, 15406495), (5, 6162598), (10, 3081299), (13, 2370230), (26, 1185115), (65, 474046), (130, 237023), (421, 73190), (563, 54730), (842, 36595), (1126, 27365), (2105, 14638), (2815, 10946), (4210, 7319), (5473, 5630)]