78761520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{109391}}^1$

素因数の和:109410

約数の個数: 60

約数和(自身を含む): 264509856

約数和(自身を除く): 185748336

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 109391, 218782, 328173, 437564, 546955, 656346, 875128, 984519, 1093910, 1312692, 1640865, 1750256, 1969038, 2187820, 2625384, 3281730, 3938076, 4375640, 4922595, 5250768, 6563460, 7876152, 8751280, 9845190, 13126920, 15752304, 19690380, 26253840, 39380760, 78761520]

約数ペア:

[(1, 78761520), (2, 39380760), (3, 26253840), (4, 19690380), (5, 15752304), (6, 13126920), (8, 9845190), (9, 8751280), (10, 7876152), (12, 6563460), (15, 5250768), (16, 4922595), (18, 4375640), (20, 3938076), (24, 3281730), (30, 2625384), (36, 2187820), (40, 1969038), (45, 1750256), (48, 1640865), (60, 1312692), (72, 1093910), (80, 984519), (90, 875128), (120, 656346), (144, 546955), (180, 437564), (240, 328173), (360, 218782), (720, 109391)]