20871720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{57977}}^1$

素因数の和:57994

約数の個数: 48

約数和(自身を含む): 67834260

約数和(自身を除く): 46962540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 57977, 115954, 173931, 231908, 289885, 347862, 463816, 521793, 579770, 695724, 869655, 1043586, 1159540, 1391448, 1739310, 2087172, 2319080, 2608965, 3478620, 4174344, 5217930, 6957240, 10435860, 20871720]

約数ペア:

[(1, 20871720), (2, 10435860), (3, 6957240), (4, 5217930), (5, 4174344), (6, 3478620), (8, 2608965), (9, 2319080), (10, 2087172), (12, 1739310), (15, 1391448), (18, 1159540), (20, 1043586), (24, 869655), (30, 695724), (36, 579770), (40, 521793), (45, 463816), (60, 347862), (72, 289885), (90, 231908), (120, 173931), (180, 115954), (360, 57977)]