788778920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61051}}^1$

素因数の和:61098

約数の個数: 64

約数和(自身を含む): 1978084800

約数和(自身を除く): 1189305880

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1615, 2584, 3230, 6460, 12920, 61051, 122102, 244204, 305255, 488408, 610510, 1037867, 1159969, 1221020, 2075734, 2319938, 2442040, 4151468, 4639876, 5189335, 5799845, 8302936, 9279752, 10378670, 11599690, 19719473, 20757340, 23199380, 39438946, 41514680, 46398760, 78877892, 98597365, 157755784, 197194730, 394389460, 788778920]

約数ペア:

[(1, 788778920), (2, 394389460), (4, 197194730), (5, 157755784), (8, 98597365), (10, 78877892), (17, 46398760), (19, 41514680), (20, 39438946), (34, 23199380), (38, 20757340), (40, 19719473), (68, 11599690), (76, 10378670), (85, 9279752), (95, 8302936), (136, 5799845), (152, 5189335), (170, 4639876), (190, 4151468), (323, 2442040), (340, 2319938), (380, 2075734), (646, 1221020), (680, 1159969), (760, 1037867), (1292, 610510), (1615, 488408), (2584, 305255), (3230, 244204), (6460, 122102), (12920, 61051)]