20189556

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 53580800

約数和(自身を除く): 33391244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 79, 93, 124, 158, 186, 229, 237, 279, 316, 372, 458, 474, 558, 687, 711, 916, 948, 1116, 1374, 1422, 2061, 2449, 2748, 2844, 4122, 4898, 7099, 7347, 8244, 9796, 14198, 14694, 18091, 21297, 22041, 28396, 29388, 36182, 42594, 44082, 54273, 63891, 72364, 85188, 88164, 108546, 127782, 162819, 217092, 255564, 325638, 560821, 651276, 1121642, 1682463, 2243284, 3364926, 5047389, 6729852, 10094778, 20189556]

約数ペア:

[(1, 20189556), (2, 10094778), (3, 6729852), (4, 5047389), (6, 3364926), (9, 2243284), (12, 1682463), (18, 1121642), (31, 651276), (36, 560821), (62, 325638), (79, 255564), (93, 217092), (124, 162819), (158, 127782), (186, 108546), (229, 88164), (237, 85188), (279, 72364), (316, 63891), (372, 54273), (458, 44082), (474, 42594), (558, 36182), (687, 29388), (711, 28396), (916, 22041), (948, 21297), (1116, 18091), (1374, 14694), (1422, 14198), (2061, 9796), (2449, 8244), (2748, 7347), (2844, 7099), (4122, 4898)]