128502650

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:599

約数の個数: 48

約数和(自身を含む): 245877120

約数和(自身を除く): 117374470

約数列:

[1, 2, 5, 10, 25, 50, 67, 89, 134, 178, 335, 431, 445, 670, 862, 890, 1675, 2155, 2225, 3350, 4310, 4450, 5963, 10775, 11926, 21550, 28877, 29815, 38359, 57754, 59630, 76718, 144385, 149075, 191795, 288770, 298150, 383590, 721925, 958975, 1443850, 1917950, 2570053, 5140106, 12850265, 25700530, 64251325, 128502650]

約数ペア:

[(1, 128502650), (2, 64251325), (5, 25700530), (10, 12850265), (25, 5140106), (50, 2570053), (67, 1917950), (89, 1443850), (134, 958975), (178, 721925), (335, 383590), (431, 298150), (445, 288770), (670, 191795), (862, 149075), (890, 144385), (1675, 76718), (2155, 59630), (2225, 57754), (3350, 38359), (4310, 29815), (4450, 28877), (5963, 21550), (10775, 11926)]