20132480

素因数分解:

$2^7\times 5^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 28705120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 320, 332, 379, 415, 640, 664, 758, 830, 1328, 1516, 1660, 1895, 2656, 3032, 3320, 3790, 5312, 6064, 6640, 7580, 10624, 12128, 13280, 15160, 24256, 26560, 30320, 31457, 48512, 53120, 60640, 62914, 121280, 125828, 157285, 242560, 251656, 314570, 503312, 629140, 1006624, 1258280, 2013248, 2516560, 4026496, 5033120, 10066240, 20132480]

約数ペア:

[(1, 20132480), (2, 10066240), (4, 5033120), (5, 4026496), (8, 2516560), (10, 2013248), (16, 1258280), (20, 1006624), (32, 629140), (40, 503312), (64, 314570), (80, 251656), (83, 242560), (128, 157285), (160, 125828), (166, 121280), (320, 62914), (332, 60640), (379, 53120), (415, 48512), (640, 31457), (664, 30320), (758, 26560), (830, 24256), (1328, 15160), (1516, 13280), (1660, 12128), (1895, 10624), (2656, 7580), (3032, 6640), (3320, 6064), (3790, 5312)]