191605420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{7187}}^1$

素因数の和:7270

約数の個数: 48

約数和(自身を含む): 425069568

約数和(自身を除く): 233464148

約数列:

[1, 2, 4, 5, 10, 20, 31, 43, 62, 86, 124, 155, 172, 215, 310, 430, 620, 860, 1333, 2666, 5332, 6665, 7187, 13330, 14374, 26660, 28748, 35935, 71870, 143740, 222797, 309041, 445594, 618082, 891188, 1113985, 1236164, 1545205, 2227970, 3090410, 4455940, 6180820, 9580271, 19160542, 38321084, 47901355, 95802710, 191605420]

約数ペア:

[(1, 191605420), (2, 95802710), (4, 47901355), (5, 38321084), (10, 19160542), (20, 9580271), (31, 6180820), (43, 4455940), (62, 3090410), (86, 2227970), (124, 1545205), (155, 1236164), (172, 1113985), (215, 891188), (310, 618082), (430, 445594), (620, 309041), (860, 222797), (1333, 143740), (2666, 71870), (5332, 35935), (6665, 28748), (7187, 26660), (13330, 14374)]