215921520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{299891}}^1$

素因数の和:299910

約数の個数: 60

約数和(自身を含む): 725138856

約数和(自身を除く): 509217336

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, 299891, 599782, 899673, 1199564, 1499455, 1799346, 2399128, 2699019, 2998910, 3598692, 4498365, 4798256, 5398038, 5997820, 7197384, 8996730, 10796076, 11995640, 13495095, 14394768, 17993460, 21592152, 23991280, 26990190, 35986920, 43184304, 53980380, 71973840, 107960760, 215921520]

約数ペア:

[(1, 215921520), (2, 107960760), (3, 71973840), (4, 53980380), (5, 43184304), (6, 35986920), (8, 26990190), (9, 23991280), (10, 21592152), (12, 17993460), (15, 14394768), (16, 13495095), (18, 11995640), (20, 10796076), (24, 8996730), (30, 7197384), (36, 5997820), (40, 5398038), (45, 4798256), (48, 4498365), (60, 3598692), (72, 2998910), (80, 2699019), (90, 2399128), (120, 1799346), (144, 1499455), (180, 1199564), (240, 899673), (360, 599782), (720, 299891)]