20228445

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{401}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 37627200

約数和(自身を除く): 17398755

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 401, 531, 855, 885, 1121, 1203, 2005, 2655, 3363, 3609, 5605, 6015, 7619, 10089, 16815, 18045, 22857, 23659, 38095, 50445, 68571, 70977, 114285, 118295, 212931, 342855, 354885, 449521, 1064655, 1348563, 2247605, 4045689, 6742815, 20228445]

約数ペア:

[(1, 20228445), (3, 6742815), (5, 4045689), (9, 2247605), (15, 1348563), (19, 1064655), (45, 449521), (57, 354885), (59, 342855), (95, 212931), (171, 118295), (177, 114285), (285, 70977), (295, 68571), (401, 50445), (531, 38095), (855, 23659), (885, 22857), (1121, 18045), (1203, 16815), (2005, 10089), (2655, 7619), (3363, 6015), (3609, 5605)]