639640080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{888389}}^1$

素因数の和:888408

約数の個数: 60

約数和(自身を含む): 2148127020

約数和(自身を除く): 1508486940

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, 888389, 1776778, 2665167, 3553556, 4441945, 5330334, 7107112, 7995501, 8883890, 10660668, 13325835, 14214224, 15991002, 17767780, 21321336, 26651670, 31982004, 35535560, 39977505, 42642672, 53303340, 63964008, 71071120, 79955010, 106606680, 127928016, 159910020, 213213360, 319820040, 639640080]

約数ペア:

[(1, 639640080), (2, 319820040), (3, 213213360), (4, 159910020), (5, 127928016), (6, 106606680), (8, 79955010), (9, 71071120), (10, 63964008), (12, 53303340), (15, 42642672), (16, 39977505), (18, 35535560), (20, 31982004), (24, 26651670), (30, 21321336), (36, 17767780), (40, 15991002), (45, 14214224), (48, 13325835), (60, 10660668), (72, 8883890), (80, 7995501), (90, 7107112), (120, 5330334), (144, 4441945), (180, 3553556), (240, 2665167), (360, 1776778), (720, 888389)]