399155250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{40939}}^1$

素因数の和:40972

約数の個数: 64

約数和(自身を含む): 1072955520

約数和(自身を除く): 673800270

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 3250, 4875, 9750, 40939, 81878, 122817, 204695, 245634, 409390, 532207, 614085, 1023475, 1064414, 1228170, 1596621, 2046950, 2661035, 3070425, 3193242, 5117375, 5322070, 6140850, 7983105, 10234750, 13305175, 15352125, 15966210, 26610350, 30704250, 39915525, 66525875, 79831050, 133051750, 199577625, 399155250]

約数ペア:

[(1, 399155250), (2, 199577625), (3, 133051750), (5, 79831050), (6, 66525875), (10, 39915525), (13, 30704250), (15, 26610350), (25, 15966210), (26, 15352125), (30, 13305175), (39, 10234750), (50, 7983105), (65, 6140850), (75, 5322070), (78, 5117375), (125, 3193242), (130, 3070425), (150, 2661035), (195, 2046950), (250, 1596621), (325, 1228170), (375, 1064414), (390, 1023475), (650, 614085), (750, 532207), (975, 409390), (1625, 245634), (1950, 204695), (3250, 122817), (4875, 81878), (9750, 40939)]