20406190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 45043200

約数和(自身を除く): 24637010

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 67, 70, 95, 133, 134, 190, 229, 266, 335, 458, 469, 665, 670, 938, 1145, 1273, 1330, 1603, 2290, 2345, 2546, 3206, 4351, 4690, 6365, 8015, 8702, 8911, 12730, 15343, 16030, 17822, 21755, 30457, 30686, 43510, 44555, 60914, 76715, 89110, 107401, 152285, 153430, 214802, 291517, 304570, 537005, 583034, 1074010, 1457585, 2040619, 2915170, 4081238, 10203095, 20406190]

約数ペア:

[(1, 20406190), (2, 10203095), (5, 4081238), (7, 2915170), (10, 2040619), (14, 1457585), (19, 1074010), (35, 583034), (38, 537005), (67, 304570), (70, 291517), (95, 214802), (133, 153430), (134, 152285), (190, 107401), (229, 89110), (266, 76715), (335, 60914), (458, 44555), (469, 43510), (665, 30686), (670, 30457), (938, 21755), (1145, 17822), (1273, 16030), (1330, 15343), (1603, 12730), (2290, 8911), (2345, 8702), (2546, 8015), (3206, 6365), (4351, 4690)]