81398760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{11497}}^1$

素因数の和:11570

約数の個数: 64

約数和(自身を含む): 248356800

約数和(自身を除く): 166958040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 59, 60, 118, 120, 177, 236, 295, 354, 472, 590, 708, 885, 1180, 1416, 1770, 2360, 3540, 7080, 11497, 22994, 34491, 45988, 57485, 68982, 91976, 114970, 137964, 172455, 229940, 275928, 344910, 459880, 678323, 689820, 1356646, 1379640, 2034969, 2713292, 3391615, 4069938, 5426584, 6783230, 8139876, 10174845, 13566460, 16279752, 20349690, 27132920, 40699380, 81398760]

約数ペア:

[(1, 81398760), (2, 40699380), (3, 27132920), (4, 20349690), (5, 16279752), (6, 13566460), (8, 10174845), (10, 8139876), (12, 6783230), (15, 5426584), (20, 4069938), (24, 3391615), (30, 2713292), (40, 2034969), (59, 1379640), (60, 1356646), (118, 689820), (120, 678323), (177, 459880), (236, 344910), (295, 275928), (354, 229940), (472, 172455), (590, 137964), (708, 114970), (885, 91976), (1180, 68982), (1416, 57485), (1770, 45988), (2360, 34491), (3540, 22994), (7080, 11497)]