20105120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{619}}^1$

素因数の和:670

約数の個数: 96

約数和(自身を含む): 56246400

約数和(自身を除く): 36141280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 70, 80, 112, 116, 140, 145, 160, 203, 224, 232, 280, 290, 406, 464, 560, 580, 619, 812, 928, 1015, 1120, 1160, 1238, 1624, 2030, 2320, 2476, 3095, 3248, 4060, 4333, 4640, 4952, 6190, 6496, 8120, 8666, 9904, 12380, 16240, 17332, 17951, 19808, 21665, 24760, 32480, 34664, 35902, 43330, 49520, 69328, 71804, 86660, 89755, 99040, 125657, 138656, 143608, 173320, 179510, 251314, 287216, 346640, 359020, 502628, 574432, 628285, 693280, 718040, 1005256, 1256570, 1436080, 2010512, 2513140, 2872160, 4021024, 5026280, 10052560, 20105120]

約数ペア:

[(1, 20105120), (2, 10052560), (4, 5026280), (5, 4021024), (7, 2872160), (8, 2513140), (10, 2010512), (14, 1436080), (16, 1256570), (20, 1005256), (28, 718040), (29, 693280), (32, 628285), (35, 574432), (40, 502628), (56, 359020), (58, 346640), (70, 287216), (80, 251314), (112, 179510), (116, 173320), (140, 143608), (145, 138656), (160, 125657), (203, 99040), (224, 89755), (232, 86660), (280, 71804), (290, 69328), (406, 49520), (464, 43330), (560, 35902), (580, 34664), (619, 32480), (812, 24760), (928, 21665), (1015, 19808), (1120, 17951), (1160, 17332), (1238, 16240), (1624, 12380), (2030, 9904), (2320, 8666), (2476, 8120), (3095, 6496), (3248, 6190), (4060, 4952), (4333, 4640)]