81125820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{7907}}^1$

素因数の和:7944

約数の個数: 96

約数和(自身を含む): 265708800

約数和(自身を除く): 184582980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 90, 95, 108, 114, 135, 171, 180, 190, 228, 270, 285, 342, 380, 513, 540, 570, 684, 855, 1026, 1140, 1710, 2052, 2565, 3420, 5130, 7907, 10260, 15814, 23721, 31628, 39535, 47442, 71163, 79070, 94884, 118605, 142326, 150233, 158140, 213489, 237210, 284652, 300466, 355815, 426978, 450699, 474420, 600932, 711630, 751165, 853956, 901398, 1067445, 1352097, 1423260, 1502330, 1802796, 2134890, 2253495, 2704194, 3004660, 4056291, 4269780, 4506990, 5408388, 6760485, 8112582, 9013980, 13520970, 16225164, 20281455, 27041940, 40562910, 81125820]

約数ペア:

[(1, 81125820), (2, 40562910), (3, 27041940), (4, 20281455), (5, 16225164), (6, 13520970), (9, 9013980), (10, 8112582), (12, 6760485), (15, 5408388), (18, 4506990), (19, 4269780), (20, 4056291), (27, 3004660), (30, 2704194), (36, 2253495), (38, 2134890), (45, 1802796), (54, 1502330), (57, 1423260), (60, 1352097), (76, 1067445), (90, 901398), (95, 853956), (108, 751165), (114, 711630), (135, 600932), (171, 474420), (180, 450699), (190, 426978), (228, 355815), (270, 300466), (285, 284652), (342, 237210), (380, 213489), (513, 158140), (540, 150233), (570, 142326), (684, 118605), (855, 94884), (1026, 79070), (1140, 71163), (1710, 47442), (2052, 39535), (2565, 31628), (3420, 23721), (5130, 15814), (7907, 10260)]