128521980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{6673}}^1$

素因数の和:6795

約数の個数: 72

約数和(自身を含む): 393552432

約数和(自身を除く): 265030452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 107, 180, 214, 321, 428, 535, 642, 963, 1070, 1284, 1605, 1926, 2140, 3210, 3852, 4815, 6420, 6673, 9630, 13346, 19260, 20019, 26692, 33365, 40038, 60057, 66730, 80076, 100095, 120114, 133460, 200190, 240228, 300285, 400380, 600570, 714011, 1201140, 1428022, 2142033, 2856044, 3570055, 4284066, 6426099, 7140110, 8568132, 10710165, 12852198, 14280220, 21420330, 25704396, 32130495, 42840660, 64260990, 128521980]

約数ペア:

[(1, 128521980), (2, 64260990), (3, 42840660), (4, 32130495), (5, 25704396), (6, 21420330), (9, 14280220), (10, 12852198), (12, 10710165), (15, 8568132), (18, 7140110), (20, 6426099), (30, 4284066), (36, 3570055), (45, 2856044), (60, 2142033), (90, 1428022), (107, 1201140), (180, 714011), (214, 600570), (321, 400380), (428, 300285), (535, 240228), (642, 200190), (963, 133460), (1070, 120114), (1284, 100095), (1605, 80076), (1926, 66730), (2140, 60057), (3210, 40038), (3852, 33365), (4815, 26692), (6420, 20019), (6673, 19260), (9630, 13346)]