42740260

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 93087792

約数和(自身を除く): 50347532

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 212, 244, 265, 305, 530, 610, 661, 1060, 1220, 1322, 2644, 3233, 3305, 6466, 6610, 12932, 13220, 16165, 32330, 35033, 40321, 64660, 70066, 80642, 140132, 161284, 175165, 201605, 350330, 403210, 700660, 806420, 2137013, 4274026, 8548052, 10685065, 21370130, 42740260]

約数ペア:

[(1, 42740260), (2, 21370130), (4, 10685065), (5, 8548052), (10, 4274026), (20, 2137013), (53, 806420), (61, 700660), (106, 403210), (122, 350330), (212, 201605), (244, 175165), (265, 161284), (305, 140132), (530, 80642), (610, 70066), (661, 64660), (1060, 40321), (1220, 35033), (1322, 32330), (2644, 16165), (3233, 13220), (3305, 12932), (6466, 6610)]