12747020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4457}}^1$

素因数の和:4490

約数の個数: 48

約数和(自身を含む): 31455648

約数和(自身を除く): 18708628

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, 4457, 8914, 17828, 22285, 44570, 49027, 57941, 89140, 98054, 115882, 196108, 231764, 245135, 289705, 490270, 579410, 637351, 980540, 1158820, 1274702, 2549404, 3186755, 6373510, 12747020]

約数ペア:

[(1, 12747020), (2, 6373510), (4, 3186755), (5, 2549404), (10, 1274702), (11, 1158820), (13, 980540), (20, 637351), (22, 579410), (26, 490270), (44, 289705), (52, 245135), (55, 231764), (65, 196108), (110, 115882), (130, 98054), (143, 89140), (220, 57941), (260, 49027), (286, 44570), (572, 22285), (715, 17828), (1430, 8914), (2860, 4457)]