20613840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6607}}^1$

素因数の和:6636

約数の個数: 80

約数和(自身を含む): 68828928

約数和(自身を除く): 48215088

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6607, 13214, 19821, 26428, 33035, 39642, 52856, 66070, 79284, 85891, 99105, 105712, 132140, 158568, 171782, 198210, 257673, 264280, 317136, 343564, 396420, 429455, 515346, 528560, 687128, 792840, 858910, 1030692, 1288365, 1374256, 1585680, 1717820, 2061384, 2576730, 3435640, 4122768, 5153460, 6871280, 10306920, 20613840]

約数ペア:

[(1, 20613840), (2, 10306920), (3, 6871280), (4, 5153460), (5, 4122768), (6, 3435640), (8, 2576730), (10, 2061384), (12, 1717820), (13, 1585680), (15, 1374256), (16, 1288365), (20, 1030692), (24, 858910), (26, 792840), (30, 687128), (39, 528560), (40, 515346), (48, 429455), (52, 396420), (60, 343564), (65, 317136), (78, 264280), (80, 257673), (104, 198210), (120, 171782), (130, 158568), (156, 132140), (195, 105712), (208, 99105), (240, 85891), (260, 79284), (312, 66070), (390, 52856), (520, 39642), (624, 33035), (780, 26428), (1040, 19821), (1560, 13214), (3120, 6607)]