201905505

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{401}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 358210944

約数和(自身を除く): 156305439

約数列:

[1, 3, 5, 9, 15, 45, 67, 167, 201, 335, 401, 501, 603, 835, 1005, 1203, 1503, 2005, 2505, 3015, 3609, 6015, 7515, 11189, 18045, 26867, 33567, 55945, 66967, 80601, 100701, 134335, 167835, 200901, 241803, 334835, 403005, 503505, 602703, 1004505, 1209015, 3013515, 4486789, 13460367, 22433945, 40381101, 67301835, 201905505]

約数ペア:

[(1, 201905505), (3, 67301835), (5, 40381101), (9, 22433945), (15, 13460367), (45, 4486789), (67, 3013515), (167, 1209015), (201, 1004505), (335, 602703), (401, 503505), (501, 403005), (603, 334835), (835, 241803), (1005, 200901), (1203, 167835), (1503, 134335), (2005, 100701), (2505, 80601), (3015, 66967), (3609, 55945), (6015, 33567), (7515, 26867), (11189, 18045)]