128859440

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{2861}}^1$

素因数の和:3437

約数の個数: 40

約数和(自身を含む): 300235248

約数和(自身を除く): 171375808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 1126, 2252, 2815, 2861, 4504, 5630, 5722, 9008, 11260, 11444, 14305, 22520, 22888, 28610, 45040, 45776, 57220, 114440, 228880, 1610743, 3221486, 6442972, 8053715, 12885944, 16107430, 25771888, 32214860, 64429720, 128859440]

約数ペア:

[(1, 128859440), (2, 64429720), (4, 32214860), (5, 25771888), (8, 16107430), (10, 12885944), (16, 8053715), (20, 6442972), (40, 3221486), (80, 1610743), (563, 228880), (1126, 114440), (2252, 57220), (2815, 45776), (2861, 45040), (4504, 28610), (5630, 22888), (5722, 22520), (9008, 14305), (11260, 11444)]