30749740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{919}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 74188800

約数和(自身を除く): 43439060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 919, 956, 1195, 1673, 1838, 2390, 3346, 3676, 4595, 4780, 6433, 6692, 8365, 9190, 12866, 16730, 18380, 25732, 32165, 33460, 64330, 128660, 219641, 439282, 878564, 1098205, 1537487, 2196410, 3074974, 4392820, 6149948, 7687435, 15374870, 30749740]

約数ペア:

[(1, 30749740), (2, 15374870), (4, 7687435), (5, 6149948), (7, 4392820), (10, 3074974), (14, 2196410), (20, 1537487), (28, 1098205), (35, 878564), (70, 439282), (140, 219641), (239, 128660), (478, 64330), (919, 33460), (956, 32165), (1195, 25732), (1673, 18380), (1838, 16730), (2390, 12866), (3346, 9190), (3676, 8365), (4595, 6692), (4780, 6433)]