18824325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 34372800

約数和(自身を除く): 15548475

約数列:

[1, 3, 5, 13, 15, 25, 39, 43, 65, 75, 129, 195, 215, 325, 449, 559, 645, 975, 1075, 1347, 1677, 2245, 2795, 3225, 5837, 6735, 8385, 11225, 13975, 17511, 19307, 29185, 33675, 41925, 57921, 87555, 96535, 145925, 250991, 289605, 437775, 482675, 752973, 1254955, 1448025, 3764865, 6274775, 18824325]

約数ペア:

[(1, 18824325), (3, 6274775), (5, 3764865), (13, 1448025), (15, 1254955), (25, 752973), (39, 482675), (43, 437775), (65, 289605), (75, 250991), (129, 145925), (195, 96535), (215, 87555), (325, 57921), (449, 41925), (559, 33675), (645, 29185), (975, 19307), (1075, 17511), (1347, 13975), (1677, 11225), (2245, 8385), (2795, 6735), (3225, 5837)]