6440080

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1019}}^1$

素因数の和:1111

約数の個数: 40

約数和(自身を含む): 15177600

約数和(自身を除く): 8737520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1019, 1264, 1580, 2038, 3160, 4076, 5095, 6320, 8152, 10190, 16304, 20380, 40760, 80501, 81520, 161002, 322004, 402505, 644008, 805010, 1288016, 1610020, 3220040, 6440080]

約数ペア:

[(1, 6440080), (2, 3220040), (4, 1610020), (5, 1288016), (8, 805010), (10, 644008), (16, 402505), (20, 322004), (40, 161002), (79, 81520), (80, 80501), (158, 40760), (316, 20380), (395, 16304), (632, 10190), (790, 8152), (1019, 6320), (1264, 5095), (1580, 4076), (2038, 3160)]