19306040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:432

約数の個数: 64

約数和(自身を含む): 47295360

約数和(自身を除く): 27989320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 271, 274, 520, 542, 548, 685, 1084, 1096, 1355, 1370, 1781, 2168, 2710, 2740, 3523, 3562, 5420, 5480, 7046, 7124, 8905, 10840, 14092, 14248, 17615, 17810, 28184, 35230, 35620, 37127, 70460, 71240, 74254, 140920, 148508, 185635, 297016, 371270, 482651, 742540, 965302, 1485080, 1930604, 2413255, 3861208, 4826510, 9653020, 19306040]

約数ペア:

[(1, 19306040), (2, 9653020), (4, 4826510), (5, 3861208), (8, 2413255), (10, 1930604), (13, 1485080), (20, 965302), (26, 742540), (40, 482651), (52, 371270), (65, 297016), (104, 185635), (130, 148508), (137, 140920), (260, 74254), (271, 71240), (274, 70460), (520, 37127), (542, 35620), (548, 35230), (685, 28184), (1084, 17810), (1096, 17615), (1355, 14248), (1370, 14092), (1781, 10840), (2168, 8905), (2710, 7124), (2740, 7046), (3523, 5480), (3562, 5420)]