20030505

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 38216448

約数和(自身を除く): 18185943

約数列:

[1, 3, 5, 11, 15, 17, 33, 37, 51, 55, 85, 111, 165, 185, 187, 193, 255, 407, 555, 561, 579, 629, 935, 965, 1221, 1887, 2035, 2123, 2805, 2895, 3145, 3281, 6105, 6369, 6919, 7141, 9435, 9843, 10615, 16405, 20757, 21423, 31845, 34595, 35705, 36091, 49215, 78551, 103785, 107115, 108273, 121397, 180455, 235653, 364191, 392755, 541365, 606985, 1178265, 1335367, 1820955, 4006101, 6676835, 20030505]

約数ペア:

[(1, 20030505), (3, 6676835), (5, 4006101), (11, 1820955), (15, 1335367), (17, 1178265), (33, 606985), (37, 541365), (51, 392755), (55, 364191), (85, 235653), (111, 180455), (165, 121397), (185, 108273), (187, 107115), (193, 103785), (255, 78551), (407, 49215), (555, 36091), (561, 35705), (579, 34595), (629, 31845), (935, 21423), (965, 20757), (1221, 16405), (1887, 10615), (2035, 9843), (2123, 9435), (2805, 7141), (2895, 6919), (3145, 6369), (3281, 6105)]