18682480

素因数分解:

$2^4\times 5^1\times {\mathrm{347}}^1\times {\mathrm{673}}^1$

素因数の和:1033

約数の個数: 40

約数和(自身を含む): 43626672

約数和(自身を除く): 24944192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 347, 673, 694, 1346, 1388, 1735, 2692, 2776, 3365, 3470, 5384, 5552, 6730, 6940, 10768, 13460, 13880, 26920, 27760, 53840, 233531, 467062, 934124, 1167655, 1868248, 2335310, 3736496, 4670620, 9341240, 18682480]

約数ペア:

[(1, 18682480), (2, 9341240), (4, 4670620), (5, 3736496), (8, 2335310), (10, 1868248), (16, 1167655), (20, 934124), (40, 467062), (80, 233531), (347, 53840), (673, 27760), (694, 26920), (1346, 13880), (1388, 13460), (1735, 10768), (2692, 6940), (2776, 6730), (3365, 5552), (3470, 5384)]