20567115

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1181}}^1$

素因数の和:1241

約数の個数: 40

約数和(自身を含む): 37757808

約数和(自身を除く): 17190693

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 1161, 1181, 1935, 3483, 3543, 5805, 5905, 10629, 17415, 17715, 31887, 50783, 53145, 95661, 152349, 159435, 253915, 457047, 478305, 761745, 1371141, 2285235, 4113423, 6855705, 20567115]

約数ペア:

[(1, 20567115), (3, 6855705), (5, 4113423), (9, 2285235), (15, 1371141), (27, 761745), (43, 478305), (45, 457047), (81, 253915), (129, 159435), (135, 152349), (215, 95661), (387, 53145), (405, 50783), (645, 31887), (1161, 17715), (1181, 17415), (1935, 10629), (3483, 5905), (3543, 5805)]