18604020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{311}}^1\times {\mathrm{997}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 52311168

約数和(自身を除く): 33707148

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 311, 622, 933, 997, 1244, 1555, 1866, 1994, 2991, 3110, 3732, 3988, 4665, 4985, 5982, 6220, 9330, 9970, 11964, 14955, 18660, 19940, 29910, 59820, 310067, 620134, 930201, 1240268, 1550335, 1860402, 3100670, 3720804, 4651005, 6201340, 9302010, 18604020]

約数ペア:

[(1, 18604020), (2, 9302010), (3, 6201340), (4, 4651005), (5, 3720804), (6, 3100670), (10, 1860402), (12, 1550335), (15, 1240268), (20, 930201), (30, 620134), (60, 310067), (311, 59820), (622, 29910), (933, 19940), (997, 18660), (1244, 14955), (1555, 11964), (1866, 9970), (1994, 9330), (2991, 6220), (3110, 5982), (3732, 4985), (3988, 4665)]