42781520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{379}}^1$

素因数の和:492

約数の個数: 80

約数和(自身を含む): 106868160

約数和(自身を除く): 64086640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 83, 85, 136, 166, 170, 272, 332, 340, 379, 415, 664, 680, 758, 830, 1328, 1360, 1411, 1516, 1660, 1895, 2822, 3032, 3320, 3790, 5644, 6064, 6443, 6640, 7055, 7580, 11288, 12886, 14110, 15160, 22576, 25772, 28220, 30320, 31457, 32215, 51544, 56440, 62914, 64430, 103088, 112880, 125828, 128860, 157285, 251656, 257720, 314570, 503312, 515440, 534769, 629140, 1069538, 1258280, 2139076, 2516560, 2673845, 4278152, 5347690, 8556304, 10695380, 21390760, 42781520]

約数ペア:

[(1, 42781520), (2, 21390760), (4, 10695380), (5, 8556304), (8, 5347690), (10, 4278152), (16, 2673845), (17, 2516560), (20, 2139076), (34, 1258280), (40, 1069538), (68, 629140), (80, 534769), (83, 515440), (85, 503312), (136, 314570), (166, 257720), (170, 251656), (272, 157285), (332, 128860), (340, 125828), (379, 112880), (415, 103088), (664, 64430), (680, 62914), (758, 56440), (830, 51544), (1328, 32215), (1360, 31457), (1411, 30320), (1516, 28220), (1660, 25772), (1895, 22576), (2822, 15160), (3032, 14110), (3320, 12886), (3790, 11288), (5644, 7580), (6064, 7055), (6443, 6640)]