68142490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 48

約数和(自身を含む): 135198936

約数和(自身を除く): 67056446

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 305, 338, 610, 661, 793, 845, 1322, 1586, 1690, 3305, 3965, 6610, 7930, 8593, 10309, 17186, 20618, 40321, 42965, 51545, 80642, 85930, 103090, 111709, 201605, 223418, 403210, 524173, 558545, 1048346, 1117090, 2620865, 5241730, 6814249, 13628498, 34071245, 68142490]

約数ペア:

[(1, 68142490), (2, 34071245), (5, 13628498), (10, 6814249), (13, 5241730), (26, 2620865), (61, 1117090), (65, 1048346), (122, 558545), (130, 524173), (169, 403210), (305, 223418), (338, 201605), (610, 111709), (661, 103090), (793, 85930), (845, 80642), (1322, 51545), (1586, 42965), (1690, 40321), (3305, 20618), (3965, 17186), (6610, 10309), (7930, 8593)]