179948980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{2521}}^1$

素因数の和:2656

約数の個数: 48

約数和(自身を含む): 391495104

約数和(自身を除く): 211546124

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 830, 860, 1660, 2521, 3569, 5042, 7138, 10084, 12605, 14276, 17845, 25210, 35690, 50420, 71380, 108403, 209243, 216806, 418486, 433612, 542015, 836972, 1046215, 1084030, 2092430, 2168060, 4184860, 8997449, 17994898, 35989796, 44987245, 89974490, 179948980]

約数ペア:

[(1, 179948980), (2, 89974490), (4, 44987245), (5, 35989796), (10, 17994898), (20, 8997449), (43, 4184860), (83, 2168060), (86, 2092430), (166, 1084030), (172, 1046215), (215, 836972), (332, 542015), (415, 433612), (430, 418486), (830, 216806), (860, 209243), (1660, 108403), (2521, 71380), (3569, 50420), (5042, 35690), (7138, 25210), (10084, 17845), (12605, 14276)]