30721425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 58567680

約数和(自身を除く): 27846255

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 163, 175, 359, 489, 525, 815, 1077, 1141, 1795, 2445, 2513, 3423, 4075, 5385, 5705, 7539, 8975, 12225, 12565, 17115, 26925, 28525, 37695, 58517, 62825, 85575, 175551, 188475, 292585, 409619, 877755, 1228857, 1462925, 2048095, 4388775, 6144285, 10240475, 30721425]

約数ペア:

[(1, 30721425), (3, 10240475), (5, 6144285), (7, 4388775), (15, 2048095), (21, 1462925), (25, 1228857), (35, 877755), (75, 409619), (105, 292585), (163, 188475), (175, 175551), (359, 85575), (489, 62825), (525, 58517), (815, 37695), (1077, 28525), (1141, 26925), (1795, 17115), (2445, 12565), (2513, 12225), (3423, 8975), (4075, 7539), (5385, 5705)]