55042940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 72

約数和(自身を含む): 125329680

約数和(自身を除く): 70286740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 107, 170, 178, 214, 289, 340, 356, 428, 445, 535, 578, 890, 1070, 1156, 1445, 1513, 1780, 1819, 2140, 2890, 3026, 3638, 5780, 6052, 7276, 7565, 9095, 9523, 15130, 18190, 19046, 25721, 30260, 30923, 36380, 38092, 47615, 51442, 61846, 95230, 102884, 123692, 128605, 154615, 161891, 190460, 257210, 309230, 323782, 514420, 618460, 647564, 809455, 1618910, 2752147, 3237820, 5504294, 11008588, 13760735, 27521470, 55042940]

約数ペア:

[(1, 55042940), (2, 27521470), (4, 13760735), (5, 11008588), (10, 5504294), (17, 3237820), (20, 2752147), (34, 1618910), (68, 809455), (85, 647564), (89, 618460), (107, 514420), (170, 323782), (178, 309230), (214, 257210), (289, 190460), (340, 161891), (356, 154615), (428, 128605), (445, 123692), (535, 102884), (578, 95230), (890, 61846), (1070, 51442), (1156, 47615), (1445, 38092), (1513, 36380), (1780, 30923), (1819, 30260), (2140, 25721), (2890, 19046), (3026, 18190), (3638, 15130), (5780, 9523), (6052, 9095), (7276, 7565)]