28831400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{853}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 72671130

約数和(自身を除く): 43839730

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 169, 200, 260, 325, 338, 520, 650, 676, 845, 853, 1300, 1352, 1690, 1706, 2600, 3380, 3412, 4225, 4265, 6760, 6824, 8450, 8530, 11089, 16900, 17060, 21325, 22178, 33800, 34120, 42650, 44356, 55445, 85300, 88712, 110890, 144157, 170600, 221780, 277225, 288314, 443560, 554450, 576628, 720785, 1108900, 1153256, 1441570, 2217800, 2883140, 3603925, 5766280, 7207850, 14415700, 28831400]

約数ペア:

[(1, 28831400), (2, 14415700), (4, 7207850), (5, 5766280), (8, 3603925), (10, 2883140), (13, 2217800), (20, 1441570), (25, 1153256), (26, 1108900), (40, 720785), (50, 576628), (52, 554450), (65, 443560), (100, 288314), (104, 277225), (130, 221780), (169, 170600), (200, 144157), (260, 110890), (325, 88712), (338, 85300), (520, 55445), (650, 44356), (676, 42650), (845, 34120), (853, 33800), (1300, 22178), (1352, 21325), (1690, 17060), (1706, 16900), (2600, 11089), (3380, 8530), (3412, 8450), (4225, 6824), (4265, 6760)]