20040345

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1$

素因数の和:647

約数の個数: 64

約数和(自身を含む): 40454400

約数和(自身を除く): 20414055

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 513, 585, 601, 741, 855, 1235, 1755, 1803, 2223, 2565, 3005, 3705, 5409, 6669, 7813, 9015, 11115, 11419, 16227, 23439, 27045, 33345, 34257, 39065, 57095, 70317, 81135, 102771, 117195, 148447, 171285, 210951, 308313, 351585, 445341, 513855, 742235, 1054755, 1336023, 1541565, 2226705, 4008069, 6680115, 20040345]

約数ペア:

[(1, 20040345), (3, 6680115), (5, 4008069), (9, 2226705), (13, 1541565), (15, 1336023), (19, 1054755), (27, 742235), (39, 513855), (45, 445341), (57, 351585), (65, 308313), (95, 210951), (117, 171285), (135, 148447), (171, 117195), (195, 102771), (247, 81135), (285, 70317), (351, 57095), (513, 39065), (585, 34257), (601, 33345), (741, 27045), (855, 23439), (1235, 16227), (1755, 11419), (1803, 11115), (2223, 9015), (2565, 7813), (3005, 6669), (3705, 5409)]