11421020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 27054720

約数和(自身を除く): 15633700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 109, 124, 130, 155, 169, 218, 260, 310, 338, 403, 436, 545, 620, 676, 806, 845, 1090, 1417, 1612, 1690, 2015, 2180, 2834, 3379, 3380, 4030, 5239, 5668, 6758, 7085, 8060, 10478, 13516, 14170, 16895, 18421, 20956, 26195, 28340, 33790, 36842, 43927, 52390, 67580, 73684, 87854, 92105, 104780, 175708, 184210, 219635, 368420, 439270, 571051, 878540, 1142102, 2284204, 2855255, 5710510, 11421020]

約数ペア:

[(1, 11421020), (2, 5710510), (4, 2855255), (5, 2284204), (10, 1142102), (13, 878540), (20, 571051), (26, 439270), (31, 368420), (52, 219635), (62, 184210), (65, 175708), (109, 104780), (124, 92105), (130, 87854), (155, 73684), (169, 67580), (218, 52390), (260, 43927), (310, 36842), (338, 33790), (403, 28340), (436, 26195), (545, 20956), (620, 18421), (676, 16895), (806, 14170), (845, 13516), (1090, 10478), (1417, 8060), (1612, 7085), (1690, 6758), (2015, 5668), (2180, 5239), (2834, 4030), (3379, 3380)]