19504450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:464

約数の個数: 72

約数和(自身を含む): 44528400

約数和(自身を除く): 25023950

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 49, 50, 70, 95, 98, 133, 175, 190, 245, 266, 350, 419, 475, 490, 665, 838, 931, 950, 1225, 1330, 1862, 2095, 2450, 2933, 3325, 4190, 4655, 5866, 6650, 7961, 9310, 10475, 14665, 15922, 20531, 20950, 23275, 29330, 39805, 41062, 46550, 55727, 73325, 79610, 102655, 111454, 146650, 199025, 205310, 278635, 390089, 398050, 513275, 557270, 780178, 1026550, 1393175, 1950445, 2786350, 3900890, 9752225, 19504450]

約数ペア:

[(1, 19504450), (2, 9752225), (5, 3900890), (7, 2786350), (10, 1950445), (14, 1393175), (19, 1026550), (25, 780178), (35, 557270), (38, 513275), (49, 398050), (50, 390089), (70, 278635), (95, 205310), (98, 199025), (133, 146650), (175, 111454), (190, 102655), (245, 79610), (266, 73325), (350, 55727), (419, 46550), (475, 41062), (490, 39805), (665, 29330), (838, 23275), (931, 20950), (950, 20531), (1225, 15922), (1330, 14665), (1862, 10475), (2095, 9310), (2450, 7961), (2933, 6650), (3325, 5866), (4190, 4655)]