1860820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 4466448

約数和(自身を除く): 2605628

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 421, 442, 842, 884, 1105, 1684, 2105, 2210, 4210, 4420, 5473, 7157, 8420, 10946, 14314, 21892, 27365, 28628, 35785, 54730, 71570, 93041, 109460, 143140, 186082, 372164, 465205, 930410, 1860820]

約数ペア:

[(1, 1860820), (2, 930410), (4, 465205), (5, 372164), (10, 186082), (13, 143140), (17, 109460), (20, 93041), (26, 71570), (34, 54730), (52, 35785), (65, 28628), (68, 27365), (85, 21892), (130, 14314), (170, 10946), (221, 8420), (260, 7157), (340, 5473), (421, 4420), (442, 4210), (842, 2210), (884, 2105), (1105, 1684)]