18461120

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1909

約数の個数: 56

約数和(自身を含む): 45403008

約数和(自身を除く): 26941888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1861, 1984, 2480, 3722, 4960, 7444, 9305, 9920, 14888, 18610, 29776, 37220, 57691, 59552, 74440, 115382, 119104, 148880, 230764, 288455, 297760, 461528, 576910, 595520, 923056, 1153820, 1846112, 2307640, 3692224, 4615280, 9230560, 18461120]

約数ペア:

[(1, 18461120), (2, 9230560), (4, 4615280), (5, 3692224), (8, 2307640), (10, 1846112), (16, 1153820), (20, 923056), (31, 595520), (32, 576910), (40, 461528), (62, 297760), (64, 288455), (80, 230764), (124, 148880), (155, 119104), (160, 115382), (248, 74440), (310, 59552), (320, 57691), (496, 37220), (620, 29776), (992, 18610), (1240, 14888), (1861, 9920), (1984, 9305), (2480, 7444), (3722, 4960)]