320488020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1780489}}^1$

素因数の和:1780504

約数の個数: 36

約数和(自身を含む): 972147540

約数和(自身を除く): 651659520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1780489, 3560978, 5341467, 7121956, 8902445, 10682934, 16024401, 17804890, 21365868, 26707335, 32048802, 35609780, 53414670, 64097604, 80122005, 106829340, 160244010, 320488020]

約数ペア:

[(1, 320488020), (2, 160244010), (3, 106829340), (4, 80122005), (5, 64097604), (6, 53414670), (9, 35609780), (10, 32048802), (12, 26707335), (15, 21365868), (18, 17804890), (20, 16024401), (30, 10682934), (36, 8902445), (45, 7121956), (60, 5341467), (90, 3560978), (180, 1780489)]