215171390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{161783}}^1$

素因数の和:161816

約数の個数: 32

約数和(自身を含む): 465937920

約数和(自身を除く): 250766530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 161783, 323566, 808915, 1132481, 1617830, 2264962, 3073877, 5662405, 6147754, 11324810, 15369385, 21517139, 30738770, 43034278, 107585695, 215171390]

約数ペア:

[(1, 215171390), (2, 107585695), (5, 43034278), (7, 30738770), (10, 21517139), (14, 15369385), (19, 11324810), (35, 6147754), (38, 5662405), (70, 3073877), (95, 2264962), (133, 1617830), (190, 1132481), (266, 808915), (665, 323566), (1330, 161783)]