130981900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{26731}}^1$

素因数の和:26759

約数の個数: 54

約数和(自身を含む): 330648108

約数和(自身を除く): 199666208

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 26731, 53462, 106924, 133655, 187117, 267310, 374234, 534620, 668275, 748468, 935585, 1309819, 1336550, 1871170, 2619638, 2673100, 3742340, 4677925, 5239276, 6549095, 9355850, 13098190, 18711700, 26196380, 32745475, 65490950, 130981900]

約数ペア:

[(1, 130981900), (2, 65490950), (4, 32745475), (5, 26196380), (7, 18711700), (10, 13098190), (14, 9355850), (20, 6549095), (25, 5239276), (28, 4677925), (35, 3742340), (49, 2673100), (50, 2619638), (70, 1871170), (98, 1336550), (100, 1309819), (140, 935585), (175, 748468), (196, 668275), (245, 534620), (350, 374234), (490, 267310), (700, 187117), (980, 133655), (1225, 106924), (2450, 53462), (4900, 26731)]