20124990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3923}}^1$

素因数の和:3958

約数の個数: 64

約数和(自身を含む): 56505600

約数和(自身を除く): 36380610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 3923, 5130, 7846, 11769, 19615, 23538, 35307, 39230, 58845, 70614, 74537, 105921, 117690, 149074, 176535, 211842, 223611, 353070, 372685, 447222, 529605, 670833, 745370, 1059210, 1118055, 1341666, 2012499, 2236110, 3354165, 4024998, 6708330, 10062495, 20124990]

約数ペア:

[(1, 20124990), (2, 10062495), (3, 6708330), (5, 4024998), (6, 3354165), (9, 2236110), (10, 2012499), (15, 1341666), (18, 1118055), (19, 1059210), (27, 745370), (30, 670833), (38, 529605), (45, 447222), (54, 372685), (57, 353070), (90, 223611), (95, 211842), (114, 176535), (135, 149074), (171, 117690), (190, 105921), (270, 74537), (285, 70614), (342, 58845), (513, 39230), (570, 35307), (855, 23538), (1026, 19615), (1710, 11769), (2565, 7846), (3923, 5130)]