19522580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1811}}^1$

素因数の和:1845

約数の個数: 72

約数和(自身を含む): 52055136

約数和(自身を除く): 32532556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 1811, 2156, 2695, 3622, 5390, 7244, 9055, 10780, 12677, 18110, 19921, 25354, 36220, 39842, 50708, 63385, 79684, 88739, 99605, 126770, 139447, 177478, 199210, 253540, 278894, 354956, 398420, 443695, 557788, 697235, 887390, 976129, 1394470, 1774780, 1952258, 2788940, 3904516, 4880645, 9761290, 19522580]

約数ペア:

[(1, 19522580), (2, 9761290), (4, 4880645), (5, 3904516), (7, 2788940), (10, 1952258), (11, 1774780), (14, 1394470), (20, 976129), (22, 887390), (28, 697235), (35, 557788), (44, 443695), (49, 398420), (55, 354956), (70, 278894), (77, 253540), (98, 199210), (110, 177478), (140, 139447), (154, 126770), (196, 99605), (220, 88739), (245, 79684), (308, 63385), (385, 50708), (490, 39842), (539, 36220), (770, 25354), (980, 19921), (1078, 18110), (1540, 12677), (1811, 10780), (2156, 9055), (2695, 7244), (3622, 5390)]