199440225

素因数分解:

$3^4\times 5^2\times {\mathrm{149}}^1\times {\mathrm{661}}^1$

素因数の和:832

約数の個数: 60

約数和(自身を含む): 372474300

約数和(自身を除く): 173034075

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 149, 225, 405, 447, 661, 675, 745, 1341, 1983, 2025, 2235, 3305, 3725, 4023, 5949, 6705, 9915, 11175, 12069, 16525, 17847, 20115, 29745, 33525, 49575, 53541, 60345, 89235, 98489, 100575, 148725, 267705, 295467, 301725, 446175, 492445, 886401, 1338525, 1477335, 2462225, 2659203, 4432005, 7386675, 7977609, 13296015, 22160025, 39888045, 66480075, 199440225]

約数ペア:

[(1, 199440225), (3, 66480075), (5, 39888045), (9, 22160025), (15, 13296015), (25, 7977609), (27, 7386675), (45, 4432005), (75, 2659203), (81, 2462225), (135, 1477335), (149, 1338525), (225, 886401), (405, 492445), (447, 446175), (661, 301725), (675, 295467), (745, 267705), (1341, 148725), (1983, 100575), (2025, 98489), (2235, 89235), (3305, 60345), (3725, 53541), (4023, 49575), (5949, 33525), (6705, 29745), (9915, 20115), (11175, 17847), (12069, 16525)]