18992025

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 37733696

約数和(自身を除く): 18741671

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 43, 45, 65, 75, 117, 129, 151, 195, 215, 225, 325, 387, 453, 559, 585, 645, 755, 975, 1075, 1359, 1677, 1935, 1963, 2265, 2795, 2925, 3225, 3775, 5031, 5889, 6493, 6795, 8385, 9675, 9815, 11325, 13975, 17667, 19479, 25155, 29445, 32465, 33975, 41925, 49075, 58437, 84409, 88335, 97395, 125775, 147225, 162325, 253227, 292185, 422045, 441675, 486975, 759681, 1266135, 1460925, 2110225, 3798405, 6330675, 18992025]

約数ペア:

[(1, 18992025), (3, 6330675), (5, 3798405), (9, 2110225), (13, 1460925), (15, 1266135), (25, 759681), (39, 486975), (43, 441675), (45, 422045), (65, 292185), (75, 253227), (117, 162325), (129, 147225), (151, 125775), (195, 97395), (215, 88335), (225, 84409), (325, 58437), (387, 49075), (453, 41925), (559, 33975), (585, 32465), (645, 29445), (755, 25155), (975, 19479), (1075, 17667), (1359, 13975), (1677, 11325), (1935, 9815), (1963, 9675), (2265, 8385), (2795, 6795), (2925, 6493), (3225, 5889), (3775, 5031)]