157341320

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{229}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 361422000

約数和(自身を除く): 204080680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 193, 229, 356, 386, 445, 458, 712, 772, 890, 916, 965, 1145, 1544, 1780, 1832, 1930, 2290, 3560, 3860, 4580, 7720, 9160, 17177, 20381, 34354, 40762, 44197, 68708, 81524, 85885, 88394, 101905, 137416, 163048, 171770, 176788, 203810, 220985, 343540, 353576, 407620, 441970, 687080, 815240, 883940, 1767880, 3933533, 7867066, 15734132, 19667665, 31468264, 39335330, 78670660, 157341320]

約数ペア:

[(1, 157341320), (2, 78670660), (4, 39335330), (5, 31468264), (8, 19667665), (10, 15734132), (20, 7867066), (40, 3933533), (89, 1767880), (178, 883940), (193, 815240), (229, 687080), (356, 441970), (386, 407620), (445, 353576), (458, 343540), (712, 220985), (772, 203810), (890, 176788), (916, 171770), (965, 163048), (1145, 137416), (1544, 101905), (1780, 88394), (1832, 85885), (1930, 81524), (2290, 68708), (3560, 44197), (3860, 40762), (4580, 34354), (7720, 20381), (9160, 17177)]