201231975

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3221}}^1$

素因数の和:3265

約数の個数: 72

約数和(自身を含む): 409915728

約数和(自身を除く): 208683753

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 49, 51, 75, 85, 105, 119, 147, 175, 245, 255, 357, 425, 525, 595, 735, 833, 1225, 1275, 1785, 2499, 2975, 3221, 3675, 4165, 8925, 9663, 12495, 16105, 20825, 22547, 48315, 54757, 62475, 67641, 80525, 112735, 157829, 164271, 241575, 273785, 338205, 383299, 473487, 563675, 789145, 821355, 1149897, 1368925, 1691025, 1916495, 2367435, 2683093, 3945725, 4106775, 5749485, 8049279, 9582475, 11837175, 13415465, 28747425, 40246395, 67077325, 201231975]

約数ペア:

[(1, 201231975), (3, 67077325), (5, 40246395), (7, 28747425), (15, 13415465), (17, 11837175), (21, 9582475), (25, 8049279), (35, 5749485), (49, 4106775), (51, 3945725), (75, 2683093), (85, 2367435), (105, 1916495), (119, 1691025), (147, 1368925), (175, 1149897), (245, 821355), (255, 789145), (357, 563675), (425, 473487), (525, 383299), (595, 338205), (735, 273785), (833, 241575), (1225, 164271), (1275, 157829), (1785, 112735), (2499, 80525), (2975, 67641), (3221, 62475), (3675, 54757), (4165, 48315), (8925, 22547), (9663, 20825), (12495, 16105)]