15920970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40823}}^1$

素因数の和:40846

約数の個数: 32

約数和(自身を含む): 41150592

約数和(自身を除く): 25229622

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 40823, 81646, 122469, 204115, 244938, 408230, 530699, 612345, 1061398, 1224690, 1592097, 2653495, 3184194, 5306990, 7960485, 15920970]

約数ペア:

[(1, 15920970), (2, 7960485), (3, 5306990), (5, 3184194), (6, 2653495), (10, 1592097), (13, 1224690), (15, 1061398), (26, 612345), (30, 530699), (39, 408230), (65, 244938), (78, 204115), (130, 122469), (195, 81646), (390, 40823)]