20623240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4261}}^1$

素因数の和:4294

約数の個数: 48

約数和(自身を含む): 51016140

約数和(自身を除く): 30392900

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4261, 4840, 8522, 17044, 21305, 34088, 42610, 46871, 85220, 93742, 170440, 187484, 234355, 374968, 468710, 515581, 937420, 1031162, 1874840, 2062324, 2577905, 4124648, 5155810, 10311620, 20623240]

約数ペア:

[(1, 20623240), (2, 10311620), (4, 5155810), (5, 4124648), (8, 2577905), (10, 2062324), (11, 1874840), (20, 1031162), (22, 937420), (40, 515581), (44, 468710), (55, 374968), (88, 234355), (110, 187484), (121, 170440), (220, 93742), (242, 85220), (440, 46871), (484, 42610), (605, 34088), (968, 21305), (1210, 17044), (2420, 8522), (4261, 4840)]