25431900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6521}}^1$

素因数の和:6551

約数の個数: 72

約数和(自身を含む): 79255344

約数和(自身を除く): 53823444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 6521, 13042, 19563, 26084, 32605, 39126, 65210, 78252, 84773, 97815, 130420, 163025, 169546, 195630, 254319, 326050, 339092, 391260, 423865, 489075, 508638, 652100, 847730, 978150, 1017276, 1271595, 1695460, 1956300, 2119325, 2543190, 4238650, 5086380, 6357975, 8477300, 12715950, 25431900]

約数ペア:

[(1, 25431900), (2, 12715950), (3, 8477300), (4, 6357975), (5, 5086380), (6, 4238650), (10, 2543190), (12, 2119325), (13, 1956300), (15, 1695460), (20, 1271595), (25, 1017276), (26, 978150), (30, 847730), (39, 652100), (50, 508638), (52, 489075), (60, 423865), (65, 391260), (75, 339092), (78, 326050), (100, 254319), (130, 195630), (150, 169546), (156, 163025), (195, 130420), (260, 97815), (300, 84773), (325, 78252), (390, 65210), (650, 39126), (780, 32605), (975, 26084), (1300, 19563), (1950, 13042), (3900, 6521)]