838007920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{551321}}^1$

素因数の和:551353

約数の個数: 40

約数和(自身を含む): 2050917840

約数和(自身を除く): 1212909920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 551321, 1102642, 2205284, 2756605, 4410568, 5513210, 8821136, 10475099, 11026420, 20950198, 22052840, 41900396, 44105680, 52375495, 83800792, 104750990, 167601584, 209501980, 419003960, 838007920]

約数ペア:

[(1, 838007920), (2, 419003960), (4, 209501980), (5, 167601584), (8, 104750990), (10, 83800792), (16, 52375495), (19, 44105680), (20, 41900396), (38, 22052840), (40, 20950198), (76, 11026420), (80, 10475099), (95, 8821136), (152, 5513210), (190, 4410568), (304, 2756605), (380, 2205284), (760, 1102642), (1520, 551321)]