18853240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{9619}}^1$

素因数の和:9644

約数の個数: 48

約数和(自身を含む): 49350600

約数和(自身を除く): 30497360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 9619, 19238, 38476, 48095, 67333, 76952, 96190, 134666, 192380, 269332, 336665, 384760, 471331, 538664, 673330, 942662, 1346660, 1885324, 2356655, 2693320, 3770648, 4713310, 9426620, 18853240]

約数ペア:

[(1, 18853240), (2, 9426620), (4, 4713310), (5, 3770648), (7, 2693320), (8, 2356655), (10, 1885324), (14, 1346660), (20, 942662), (28, 673330), (35, 538664), (40, 471331), (49, 384760), (56, 336665), (70, 269332), (98, 192380), (140, 134666), (196, 96190), (245, 76952), (280, 67333), (392, 48095), (490, 38476), (980, 19238), (1960, 9619)]