20559045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18148155

約数列:

[1, 3, 5, 13, 15, 19, 31, 39, 57, 65, 93, 95, 155, 179, 195, 247, 285, 403, 465, 537, 589, 741, 895, 1209, 1235, 1767, 2015, 2327, 2685, 2945, 3401, 3705, 5549, 6045, 6981, 7657, 8835, 10203, 11635, 16647, 17005, 22971, 27745, 34905, 38285, 44213, 51015, 72137, 83235, 105431, 114855, 132639, 216411, 221065, 316293, 360685, 527155, 663195, 1082055, 1370603, 1581465, 4111809, 6853015, 20559045]

約数ペア:

[(1, 20559045), (3, 6853015), (5, 4111809), (13, 1581465), (15, 1370603), (19, 1082055), (31, 663195), (39, 527155), (57, 360685), (65, 316293), (93, 221065), (95, 216411), (155, 132639), (179, 114855), (195, 105431), (247, 83235), (285, 72137), (403, 51015), (465, 44213), (537, 38285), (589, 34905), (741, 27745), (895, 22971), (1209, 17005), (1235, 16647), (1767, 11635), (2015, 10203), (2327, 8835), (2685, 7657), (2945, 6981), (3401, 6045), (3705, 5549)]