18310460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4219}}^1$

素因数の和:4266

約数の個数: 48

約数和(自身を含む): 45373440

約数和(自身を除く): 27062980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4219, 4340, 8438, 16876, 21095, 29533, 42190, 59066, 84380, 118132, 130789, 147665, 261578, 295330, 523156, 590660, 653945, 915523, 1307890, 1831046, 2615780, 3662092, 4577615, 9155230, 18310460]

約数ペア:

[(1, 18310460), (2, 9155230), (4, 4577615), (5, 3662092), (7, 2615780), (10, 1831046), (14, 1307890), (20, 915523), (28, 653945), (31, 590660), (35, 523156), (62, 295330), (70, 261578), (124, 147665), (140, 130789), (155, 118132), (217, 84380), (310, 59066), (434, 42190), (620, 29533), (868, 21095), (1085, 16876), (2170, 8438), (4219, 4340)]