19109025

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 37914240

約数和(自身を除く): 18805215

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 47, 65, 75, 117, 139, 141, 195, 225, 235, 325, 417, 423, 585, 611, 695, 705, 975, 1175, 1251, 1807, 1833, 2085, 2115, 2925, 3055, 3475, 3525, 5421, 5499, 6255, 6533, 9035, 9165, 10425, 10575, 15275, 16263, 19599, 27105, 27495, 31275, 32665, 45175, 45825, 58797, 81315, 84929, 97995, 135525, 137475, 163325, 254787, 293985, 406575, 424645, 489975, 764361, 1273935, 1469925, 2123225, 3821805, 6369675, 19109025]

約数ペア:

[(1, 19109025), (3, 6369675), (5, 3821805), (9, 2123225), (13, 1469925), (15, 1273935), (25, 764361), (39, 489975), (45, 424645), (47, 406575), (65, 293985), (75, 254787), (117, 163325), (139, 137475), (141, 135525), (195, 97995), (225, 84929), (235, 81315), (325, 58797), (417, 45825), (423, 45175), (585, 32665), (611, 31275), (695, 27495), (705, 27105), (975, 19599), (1175, 16263), (1251, 15275), (1807, 10575), (1833, 10425), (2085, 9165), (2115, 9035), (2925, 6533), (3055, 6255), (3475, 5499), (3525, 5421)]