81200820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{18539}}^1$

素因数の和:18624

約数の個数: 48

約数和(自身を含む): 230489280

約数和(自身を除く): 149288460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 18539, 37078, 55617, 74156, 92695, 111234, 185390, 222468, 278085, 370780, 556170, 1112340, 1353347, 2706694, 4060041, 5413388, 6766735, 8120082, 13533470, 16240164, 20300205, 27066940, 40600410, 81200820]

約数ペア:

[(1, 81200820), (2, 40600410), (3, 27066940), (4, 20300205), (5, 16240164), (6, 13533470), (10, 8120082), (12, 6766735), (15, 5413388), (20, 4060041), (30, 2706694), (60, 1353347), (73, 1112340), (146, 556170), (219, 370780), (292, 278085), (365, 222468), (438, 185390), (730, 111234), (876, 92695), (1095, 74156), (1460, 55617), (2190, 37078), (4380, 18539)]