128378520

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{39623}}^1$

素因数の和:39646

約数の個数: 80

約数和(自身を含む): 431505360

約数和(自身を除く): 303126840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 39623, 79246, 118869, 158492, 198115, 237738, 316984, 356607, 396230, 475476, 594345, 713214, 792460, 950952, 1069821, 1188690, 1426428, 1584920, 1783035, 2139642, 2377380, 2852856, 3209463, 3566070, 4279284, 4754760, 5349105, 6418926, 7132140, 8558568, 10698210, 12837852, 14264280, 16047315, 21396420, 25675704, 32094630, 42792840, 64189260, 128378520]

約数ペア:

[(1, 128378520), (2, 64189260), (3, 42792840), (4, 32094630), (5, 25675704), (6, 21396420), (8, 16047315), (9, 14264280), (10, 12837852), (12, 10698210), (15, 8558568), (18, 7132140), (20, 6418926), (24, 5349105), (27, 4754760), (30, 4279284), (36, 3566070), (40, 3209463), (45, 2852856), (54, 2377380), (60, 2139642), (72, 1783035), (81, 1584920), (90, 1426428), (108, 1188690), (120, 1069821), (135, 950952), (162, 792460), (180, 713214), (216, 594345), (270, 475476), (324, 396230), (360, 356607), (405, 316984), (540, 237738), (648, 198115), (810, 158492), (1080, 118869), (1620, 79246), (3240, 39623)]