247186480

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{22229}}^1$

素因数の和:22381

約数の個数: 40

約数和(自身を含む): 578869200

約数和(自身を除く): 331682720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 22229, 44458, 88916, 111145, 177832, 222290, 355664, 444580, 889160, 1778320, 3089831, 6179662, 12359324, 15449155, 24718648, 30898310, 49437296, 61796620, 123593240, 247186480]

約数ペア:

[(1, 247186480), (2, 123593240), (4, 61796620), (5, 49437296), (8, 30898310), (10, 24718648), (16, 15449155), (20, 12359324), (40, 6179662), (80, 3089831), (139, 1778320), (278, 889160), (556, 444580), (695, 355664), (1112, 222290), (1390, 177832), (2224, 111145), (2780, 88916), (5560, 44458), (11120, 22229)]