18766404

素因数分解:

$2^2\times 3^5\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 50450400

約数和(自身を除く): 31683996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 243, 258, 324, 387, 449, 486, 516, 774, 898, 972, 1161, 1347, 1548, 1796, 2322, 2694, 3483, 4041, 4644, 5388, 6966, 8082, 10449, 12123, 13932, 16164, 19307, 20898, 24246, 36369, 38614, 41796, 48492, 57921, 72738, 77228, 109107, 115842, 145476, 173763, 218214, 231684, 347526, 436428, 521289, 695052, 1042578, 1563867, 2085156, 3127734, 4691601, 6255468, 9383202, 18766404]

約数ペア:

[(1, 18766404), (2, 9383202), (3, 6255468), (4, 4691601), (6, 3127734), (9, 2085156), (12, 1563867), (18, 1042578), (27, 695052), (36, 521289), (43, 436428), (54, 347526), (81, 231684), (86, 218214), (108, 173763), (129, 145476), (162, 115842), (172, 109107), (243, 77228), (258, 72738), (324, 57921), (387, 48492), (449, 41796), (486, 38614), (516, 36369), (774, 24246), (898, 20898), (972, 19307), (1161, 16164), (1347, 13932), (1548, 12123), (1796, 10449), (2322, 8082), (2694, 6966), (3483, 5388), (4041, 4644)]