80204940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{445583}}^1$

素因数の和:445598

約数の個数: 36

約数和(自身を含む): 243288864

約数和(自身を除く): 163083924

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 445583, 891166, 1336749, 1782332, 2227915, 2673498, 4010247, 4455830, 5346996, 6683745, 8020494, 8911660, 13367490, 16040988, 20051235, 26734980, 40102470, 80204940]

約数ペア:

[(1, 80204940), (2, 40102470), (3, 26734980), (4, 20051235), (5, 16040988), (6, 13367490), (9, 8911660), (10, 8020494), (12, 6683745), (15, 5346996), (18, 4455830), (20, 4010247), (30, 2673498), (36, 2227915), (45, 1782332), (60, 1336749), (90, 891166), (180, 445583)]