51805520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:592

約数の個数: 80

約数和(自身を含む): 131189520

約数和(自身を除く): 79384000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 436, 457, 520, 545, 872, 914, 1040, 1090, 1417, 1744, 1828, 2180, 2285, 2834, 3656, 4360, 4570, 5668, 5941, 7085, 7312, 8720, 9140, 11336, 11882, 14170, 18280, 22672, 23764, 28340, 29705, 36560, 47528, 49813, 56680, 59410, 95056, 99626, 113360, 118820, 199252, 237640, 249065, 398504, 475280, 498130, 647569, 797008, 996260, 1295138, 1992520, 2590276, 3237845, 3985040, 5180552, 6475690, 10361104, 12951380, 25902760, 51805520]

約数ペア:

[(1, 51805520), (2, 25902760), (4, 12951380), (5, 10361104), (8, 6475690), (10, 5180552), (13, 3985040), (16, 3237845), (20, 2590276), (26, 1992520), (40, 1295138), (52, 996260), (65, 797008), (80, 647569), (104, 498130), (109, 475280), (130, 398504), (208, 249065), (218, 237640), (260, 199252), (436, 118820), (457, 113360), (520, 99626), (545, 95056), (872, 59410), (914, 56680), (1040, 49813), (1090, 47528), (1417, 36560), (1744, 29705), (1828, 28340), (2180, 23764), (2285, 22672), (2834, 18280), (3656, 14170), (4360, 11882), (4570, 11336), (5668, 9140), (5941, 8720), (7085, 7312)]