64943820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1889}}^1$

素因数の和:2095

約数の個数: 72

約数和(自身を含む): 198132480

約数和(自身を除く): 133188660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 191, 382, 573, 764, 955, 1146, 1719, 1889, 1910, 2292, 2865, 3438, 3778, 3820, 5667, 5730, 6876, 7556, 8595, 9445, 11334, 11460, 17001, 17190, 18890, 22668, 28335, 34002, 34380, 37780, 56670, 68004, 85005, 113340, 170010, 340020, 360799, 721598, 1082397, 1443196, 1803995, 2164794, 3247191, 3607990, 4329588, 5411985, 6494382, 7215980, 10823970, 12988764, 16235955, 21647940, 32471910, 64943820]

約数ペア:

[(1, 64943820), (2, 32471910), (3, 21647940), (4, 16235955), (5, 12988764), (6, 10823970), (9, 7215980), (10, 6494382), (12, 5411985), (15, 4329588), (18, 3607990), (20, 3247191), (30, 2164794), (36, 1803995), (45, 1443196), (60, 1082397), (90, 721598), (180, 360799), (191, 340020), (382, 170010), (573, 113340), (764, 85005), (955, 68004), (1146, 56670), (1719, 37780), (1889, 34380), (1910, 34002), (2292, 28335), (2865, 22668), (3438, 18890), (3778, 17190), (3820, 17001), (5667, 11460), (5730, 11334), (6876, 9445), (7556, 8595)]