81503340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1511}}^1$

素因数の和:1583

約数の個数: 96

約数和(自身を含む): 243855360

約数和(自身を除く): 162352020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 31, 58, 60, 62, 87, 93, 116, 124, 145, 155, 174, 186, 290, 310, 348, 372, 435, 465, 580, 620, 870, 899, 930, 1511, 1740, 1798, 1860, 2697, 3022, 3596, 4495, 4533, 5394, 6044, 7555, 8990, 9066, 10788, 13485, 15110, 17980, 18132, 22665, 26970, 30220, 43819, 45330, 46841, 53940, 87638, 90660, 93682, 131457, 140523, 175276, 187364, 219095, 234205, 262914, 281046, 438190, 468410, 525828, 562092, 657285, 702615, 876380, 936820, 1314570, 1358389, 1405230, 2629140, 2716778, 2810460, 4075167, 5433556, 6791945, 8150334, 13583890, 16300668, 20375835, 27167780, 40751670, 81503340]

約数ペア:

[(1, 81503340), (2, 40751670), (3, 27167780), (4, 20375835), (5, 16300668), (6, 13583890), (10, 8150334), (12, 6791945), (15, 5433556), (20, 4075167), (29, 2810460), (30, 2716778), (31, 2629140), (58, 1405230), (60, 1358389), (62, 1314570), (87, 936820), (93, 876380), (116, 702615), (124, 657285), (145, 562092), (155, 525828), (174, 468410), (186, 438190), (290, 281046), (310, 262914), (348, 234205), (372, 219095), (435, 187364), (465, 175276), (580, 140523), (620, 131457), (870, 93682), (899, 90660), (930, 87638), (1511, 53940), (1740, 46841), (1798, 45330), (1860, 43819), (2697, 30220), (3022, 26970), (3596, 22665), (4495, 18132), (4533, 17980), (5394, 15110), (6044, 13485), (7555, 10788), (8990, 9066)]