1818922040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1657}}^1\times {\mathrm{2111}}^1$

素因数の和:3792

約数の個数: 64

約数和(自身を含む): 4412136960

約数和(自身を除く): 2593214920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1657, 2111, 3314, 4222, 6628, 8285, 8444, 10555, 13256, 16570, 16888, 21110, 21541, 27443, 33140, 42220, 43082, 54886, 66280, 84440, 86164, 107705, 109772, 137215, 172328, 215410, 219544, 274430, 430820, 548860, 861640, 1097720, 3497927, 6995854, 13991708, 17489635, 27983416, 34979270, 45473051, 69958540, 90946102, 139917080, 181892204, 227365255, 363784408, 454730510, 909461020, 1818922040]

約数ペア:

[(1, 1818922040), (2, 909461020), (4, 454730510), (5, 363784408), (8, 227365255), (10, 181892204), (13, 139917080), (20, 90946102), (26, 69958540), (40, 45473051), (52, 34979270), (65, 27983416), (104, 17489635), (130, 13991708), (260, 6995854), (520, 3497927), (1657, 1097720), (2111, 861640), (3314, 548860), (4222, 430820), (6628, 274430), (8285, 219544), (8444, 215410), (10555, 172328), (13256, 137215), (16570, 109772), (16888, 107705), (21110, 86164), (21541, 84440), (27443, 66280), (33140, 54886), (42220, 43082)]