18245780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2459}}^1$

素因数の和:2528

約数の個数: 48

約数和(自身を含む): 44634240

約数和(自身を除く): 26388460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2459, 3710, 4918, 7420, 9836, 12295, 17213, 24590, 34426, 49180, 68852, 86065, 130327, 172130, 260654, 344260, 521308, 651635, 912289, 1303270, 1824578, 2606540, 3649156, 4561445, 9122890, 18245780]

約数ペア:

[(1, 18245780), (2, 9122890), (4, 4561445), (5, 3649156), (7, 2606540), (10, 1824578), (14, 1303270), (20, 912289), (28, 651635), (35, 521308), (53, 344260), (70, 260654), (106, 172130), (140, 130327), (212, 86065), (265, 68852), (371, 49180), (530, 34426), (742, 24590), (1060, 17213), (1484, 12295), (1855, 9836), (2459, 7420), (3710, 4918)]