13261820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4637}}^1$

素因数の和:4670

約数の個数: 48

約数和(自身を含む): 32725728

約数和(自身を除く): 19463908

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 4637, 9274, 18548, 23185, 46370, 51007, 60281, 92740, 102014, 120562, 204028, 241124, 255035, 301405, 510070, 602810, 663091, 1020140, 1205620, 1326182, 2652364, 3315455, 6630910, 13261820]

約数ペア:

[(1, 13261820), (2, 6630910), (4, 3315455), (5, 2652364), (10, 1326182), (11, 1205620), (13, 1020140), (20, 663091), (22, 602810), (26, 510070), (44, 301405), (52, 255035), (55, 241124), (65, 204028), (110, 120562), (130, 102014), (143, 92740), (220, 60281), (260, 51007), (286, 46370), (572, 23185), (715, 18548), (1430, 9274), (2860, 4637)]