389820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 1118880

約数和(自身を除く): 729060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 89, 146, 178, 219, 267, 292, 356, 365, 438, 445, 534, 730, 876, 890, 1068, 1095, 1335, 1460, 1780, 2190, 2670, 4380, 5340, 6497, 12994, 19491, 25988, 32485, 38982, 64970, 77964, 97455, 129940, 194910, 389820]

約数ペア:

[(1, 389820), (2, 194910), (3, 129940), (4, 97455), (5, 77964), (6, 64970), (10, 38982), (12, 32485), (15, 25988), (20, 19491), (30, 12994), (60, 6497), (73, 5340), (89, 4380), (146, 2670), (178, 2190), (219, 1780), (267, 1460), (292, 1335), (356, 1095), (365, 1068), (438, 890), (445, 876), (534, 730)]