28471560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18251}}^1$

素因数の和:18278

約数の個数: 64

約数和(自身を含む): 91990080

約数和(自身を除く): 63518520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 18251, 36502, 54753, 73004, 91255, 109506, 146008, 182510, 219012, 237263, 273765, 365020, 438024, 474526, 547530, 711789, 730040, 949052, 1095060, 1186315, 1423578, 1898104, 2190120, 2372630, 2847156, 3558945, 4745260, 5694312, 7117890, 9490520, 14235780, 28471560]

約数ペア:

[(1, 28471560), (2, 14235780), (3, 9490520), (4, 7117890), (5, 5694312), (6, 4745260), (8, 3558945), (10, 2847156), (12, 2372630), (13, 2190120), (15, 1898104), (20, 1423578), (24, 1186315), (26, 1095060), (30, 949052), (39, 730040), (40, 711789), (52, 547530), (60, 474526), (65, 438024), (78, 365020), (104, 273765), (120, 237263), (130, 219012), (156, 182510), (195, 146008), (260, 109506), (312, 91255), (390, 73004), (520, 54753), (780, 36502), (1560, 18251)]