19531820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1153}}^1$

素因数の和:1191

約数の個数: 72

約数和(自身を含む): 51569952

約数和(自身を除く): 32038132

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1153, 1210, 1540, 1694, 2306, 2420, 3388, 4235, 4612, 5765, 8071, 8470, 11530, 12683, 16142, 16940, 23060, 25366, 32284, 40355, 50732, 63415, 80710, 88781, 126830, 139513, 161420, 177562, 253660, 279026, 355124, 443905, 558052, 697565, 887810, 976591, 1395130, 1775620, 1953182, 2790260, 3906364, 4882955, 9765910, 19531820]

約数ペア:

[(1, 19531820), (2, 9765910), (4, 4882955), (5, 3906364), (7, 2790260), (10, 1953182), (11, 1775620), (14, 1395130), (20, 976591), (22, 887810), (28, 697565), (35, 558052), (44, 443905), (55, 355124), (70, 279026), (77, 253660), (110, 177562), (121, 161420), (140, 139513), (154, 126830), (220, 88781), (242, 80710), (308, 63415), (385, 50732), (484, 40355), (605, 32284), (770, 25366), (847, 23060), (1153, 16940), (1210, 16142), (1540, 12683), (1694, 11530), (2306, 8470), (2420, 8071), (3388, 5765), (4235, 4612)]