447580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 1128960

約数和(自身を除く): 681380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 139, 140, 161, 230, 278, 322, 460, 556, 644, 695, 805, 973, 1390, 1610, 1946, 2780, 3197, 3220, 3892, 4865, 6394, 9730, 12788, 15985, 19460, 22379, 31970, 44758, 63940, 89516, 111895, 223790, 447580]

約数ペア:

[(1, 447580), (2, 223790), (4, 111895), (5, 89516), (7, 63940), (10, 44758), (14, 31970), (20, 22379), (23, 19460), (28, 15985), (35, 12788), (46, 9730), (70, 6394), (92, 4865), (115, 3892), (139, 3220), (140, 3197), (161, 2780), (230, 1946), (278, 1610), (322, 1390), (460, 973), (556, 805), (644, 695)]