20992620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1871}}^1$

素因数の和:1911

約数の個数: 96

約数和(自身を含む): 67931136

約数和(自身を除く): 46938516

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 60, 66, 68, 85, 102, 110, 132, 165, 170, 187, 204, 220, 255, 330, 340, 374, 510, 561, 660, 748, 935, 1020, 1122, 1870, 1871, 2244, 2805, 3740, 3742, 5610, 5613, 7484, 9355, 11220, 11226, 18710, 20581, 22452, 28065, 31807, 37420, 41162, 56130, 61743, 63614, 82324, 95421, 102905, 112260, 123486, 127228, 159035, 190842, 205810, 246972, 308715, 318070, 349877, 381684, 411620, 477105, 617430, 636140, 699754, 954210, 1049631, 1234860, 1399508, 1749385, 1908420, 2099262, 3498770, 4198524, 5248155, 6997540, 10496310, 20992620]

約数ペア:

[(1, 20992620), (2, 10496310), (3, 6997540), (4, 5248155), (5, 4198524), (6, 3498770), (10, 2099262), (11, 1908420), (12, 1749385), (15, 1399508), (17, 1234860), (20, 1049631), (22, 954210), (30, 699754), (33, 636140), (34, 617430), (44, 477105), (51, 411620), (55, 381684), (60, 349877), (66, 318070), (68, 308715), (85, 246972), (102, 205810), (110, 190842), (132, 159035), (165, 127228), (170, 123486), (187, 112260), (204, 102905), (220, 95421), (255, 82324), (330, 63614), (340, 61743), (374, 56130), (510, 41162), (561, 37420), (660, 31807), (748, 28065), (935, 22452), (1020, 20581), (1122, 18710), (1870, 11226), (1871, 11220), (2244, 9355), (2805, 7484), (3740, 5613), (3742, 5610)]