20686590

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8513}}^1$

素因数の和:8535

約数の個数: 48

約数和(自身を含む): 55783728

約数和(自身を除く): 35097138

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8513, 17026, 25539, 42565, 51078, 76617, 85130, 127695, 153234, 229851, 255390, 383085, 459702, 689553, 766170, 1149255, 1379106, 2068659, 2298510, 3447765, 4137318, 6895530, 10343295, 20686590]

約数ペア:

[(1, 20686590), (2, 10343295), (3, 6895530), (5, 4137318), (6, 3447765), (9, 2298510), (10, 2068659), (15, 1379106), (18, 1149255), (27, 766170), (30, 689553), (45, 459702), (54, 383085), (81, 255390), (90, 229851), (135, 153234), (162, 127695), (243, 85130), (270, 76617), (405, 51078), (486, 42565), (810, 25539), (1215, 17026), (2430, 8513)]