20341685

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 31973760

約数和(自身を除く): 11632075

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 169, 181, 247, 455, 665, 845, 905, 1183, 1235, 1267, 1729, 2353, 3211, 3439, 5915, 6335, 8645, 11765, 16055, 16471, 17195, 22477, 24073, 30589, 44707, 82355, 112385, 120365, 152945, 214123, 223535, 312949, 581191, 1070615, 1564745, 2905955, 4068337, 20341685]

約数ペア:

[(1, 20341685), (5, 4068337), (7, 2905955), (13, 1564745), (19, 1070615), (35, 581191), (65, 312949), (91, 223535), (95, 214123), (133, 152945), (169, 120365), (181, 112385), (247, 82355), (455, 44707), (665, 30589), (845, 24073), (905, 22477), (1183, 17195), (1235, 16471), (1267, 16055), (1729, 11765), (2353, 8645), (3211, 6335), (3439, 5915)]