11111820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4517}}^1$

素因数の和:4570

約数の個数: 48

約数和(自身を含む): 31879008

約数和(自身を除く): 20767188

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 4517, 9034, 13551, 18068, 22585, 27102, 45170, 54204, 67755, 90340, 135510, 185197, 271020, 370394, 555591, 740788, 925985, 1111182, 1851970, 2222364, 2777955, 3703940, 5555910, 11111820]

約数ペア:

[(1, 11111820), (2, 5555910), (3, 3703940), (4, 2777955), (5, 2222364), (6, 1851970), (10, 1111182), (12, 925985), (15, 740788), (20, 555591), (30, 370394), (41, 271020), (60, 185197), (82, 135510), (123, 90340), (164, 67755), (205, 54204), (246, 45170), (410, 27102), (492, 22585), (615, 18068), (820, 13551), (1230, 9034), (2460, 4517)]