18185840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7333}}^1$

素因数の和:7377

約数の個数: 40

約数和(自身を含む): 43651968

約数和(自身を除く): 25466128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7333, 14666, 29332, 36665, 58664, 73330, 117328, 146660, 227323, 293320, 454646, 586640, 909292, 1136615, 1818584, 2273230, 3637168, 4546460, 9092920, 18185840]

約数ペア:

[(1, 18185840), (2, 9092920), (4, 4546460), (5, 3637168), (8, 2273230), (10, 1818584), (16, 1136615), (20, 909292), (31, 586640), (40, 454646), (62, 293320), (80, 227323), (124, 146660), (155, 117328), (248, 73330), (310, 58664), (496, 36665), (620, 29332), (1240, 14666), (2480, 7333)]