20984941624

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1\times {\mathrm{463}}^1$

素因数の和:1040

約数の個数: 64

約数和(自身を含む): 40144890240

約数和(自身を除く): 19159948616

約数列:

[1, 2, 4, 8, 113, 181, 226, 277, 362, 452, 463, 554, 724, 904, 926, 1108, 1448, 1852, 2216, 3704, 20453, 31301, 40906, 50137, 52319, 62602, 81812, 83803, 100274, 104638, 125204, 128251, 163624, 167606, 200548, 209276, 250408, 256502, 335212, 401096, 418552, 513004, 670424, 1026008, 5665481, 9469739, 11330962, 14492363, 18939478, 22661924, 23213431, 28984726, 37878956, 45323848, 46426862, 57969452, 75757912, 92853724, 115938904, 185707448, 2623117703, 5246235406, 10492470812, 20984941624]

約数ペア:

[(1, 20984941624), (2, 10492470812), (4, 5246235406), (8, 2623117703), (113, 185707448), (181, 115938904), (226, 92853724), (277, 75757912), (362, 57969452), (452, 46426862), (463, 45323848), (554, 37878956), (724, 28984726), (904, 23213431), (926, 22661924), (1108, 18939478), (1448, 14492363), (1852, 11330962), (2216, 9469739), (3704, 5665481), (20453, 1026008), (31301, 670424), (40906, 513004), (50137, 418552), (52319, 401096), (62602, 335212), (81812, 256502), (83803, 250408), (100274, 209276), (104638, 200548), (125204, 167606), (128251, 163624)]