20838168

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:250

約数の個数: 128

約数和(自身を含む): 64209600

約数和(自身を除く): 43371432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 41, 52, 54, 72, 78, 82, 104, 108, 117, 123, 156, 164, 181, 216, 234, 246, 312, 328, 351, 362, 369, 468, 492, 533, 543, 702, 724, 738, 936, 984, 1066, 1086, 1107, 1404, 1448, 1476, 1599, 1629, 2132, 2172, 2214, 2353, 2808, 2952, 3198, 3258, 4264, 4344, 4428, 4706, 4797, 4887, 6396, 6516, 7059, 7421, 8856, 9412, 9594, 9774, 12792, 13032, 14118, 14391, 14842, 18824, 19188, 19548, 21177, 22263, 28236, 28782, 29684, 38376, 39096, 42354, 44526, 56472, 57564, 59368, 63531, 66789, 84708, 89052, 96473, 115128, 127062, 133578, 169416, 178104, 192946, 200367, 254124, 267156, 289419, 385892, 400734, 508248, 534312, 578838, 771784, 801468, 868257, 1157676, 1602936, 1736514, 2315352, 2604771, 3473028, 5209542, 6946056, 10419084, 20838168]

約数ペア:

[(1, 20838168), (2, 10419084), (3, 6946056), (4, 5209542), (6, 3473028), (8, 2604771), (9, 2315352), (12, 1736514), (13, 1602936), (18, 1157676), (24, 868257), (26, 801468), (27, 771784), (36, 578838), (39, 534312), (41, 508248), (52, 400734), (54, 385892), (72, 289419), (78, 267156), (82, 254124), (104, 200367), (108, 192946), (117, 178104), (123, 169416), (156, 133578), (164, 127062), (181, 115128), (216, 96473), (234, 89052), (246, 84708), (312, 66789), (328, 63531), (351, 59368), (362, 57564), (369, 56472), (468, 44526), (492, 42354), (533, 39096), (543, 38376), (702, 29684), (724, 28782), (738, 28236), (936, 22263), (984, 21177), (1066, 19548), (1086, 19188), (1107, 18824), (1404, 14842), (1448, 14391), (1476, 14118), (1599, 13032), (1629, 12792), (2132, 9774), (2172, 9594), (2214, 9412), (2353, 8856), (2808, 7421), (2952, 7059), (3198, 6516), (3258, 6396), (4264, 4887), (4344, 4797), (4428, 4706)]