400156925

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 594878592

約数和(自身を除く): 194721667

約数列:

[1, 5, 7, 25, 35, 41, 43, 175, 205, 215, 287, 301, 1025, 1075, 1297, 1435, 1505, 1763, 6485, 7175, 7525, 8815, 9079, 12341, 32425, 44075, 45395, 53177, 55771, 61705, 226975, 265885, 278855, 308525, 372239, 390397, 1329425, 1394275, 1861195, 1951985, 2286611, 9305975, 9759925, 11433055, 16006277, 57165275, 80031385, 400156925]

約数ペア:

[(1, 400156925), (5, 80031385), (7, 57165275), (25, 16006277), (35, 11433055), (41, 9759925), (43, 9305975), (175, 2286611), (205, 1951985), (215, 1861195), (287, 1394275), (301, 1329425), (1025, 390397), (1075, 372239), (1297, 308525), (1435, 278855), (1505, 265885), (1763, 226975), (6485, 61705), (7175, 55771), (7525, 53177), (8815, 45395), (9079, 44075), (12341, 32425)]