19489860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8329}}^1$

素因数の和:8357

約数の個数: 72

約数和(自身を含む): 63674520

約数和(自身を除く): 44184660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8329, 16658, 24987, 33316, 41645, 49974, 74961, 83290, 99948, 108277, 124935, 149922, 166580, 216554, 249870, 299844, 324831, 374805, 433108, 499740, 541385, 649662, 749610, 974493, 1082770, 1299324, 1499220, 1624155, 1948986, 2165540, 3248310, 3897972, 4872465, 6496620, 9744930, 19489860]

約数ペア:

[(1, 19489860), (2, 9744930), (3, 6496620), (4, 4872465), (5, 3897972), (6, 3248310), (9, 2165540), (10, 1948986), (12, 1624155), (13, 1499220), (15, 1299324), (18, 1082770), (20, 974493), (26, 749610), (30, 649662), (36, 541385), (39, 499740), (45, 433108), (52, 374805), (60, 324831), (65, 299844), (78, 249870), (90, 216554), (117, 166580), (130, 149922), (156, 124935), (180, 108277), (195, 99948), (234, 83290), (260, 74961), (390, 49974), (468, 41645), (585, 33316), (780, 24987), (1170, 16658), (2340, 8329)]