287346520

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 661284000

約数和(自身を除く): 373937480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 313, 389, 472, 590, 626, 778, 1180, 1252, 1556, 1565, 1945, 2360, 2504, 3112, 3130, 3890, 6260, 7780, 12520, 15560, 18467, 22951, 36934, 45902, 73868, 91804, 92335, 114755, 121757, 147736, 183608, 184670, 229510, 243514, 369340, 459020, 487028, 608785, 738680, 918040, 974056, 1217570, 2435140, 4870280, 7183663, 14367326, 28734652, 35918315, 57469304, 71836630, 143673260, 287346520]

約数ペア:

[(1, 287346520), (2, 143673260), (4, 71836630), (5, 57469304), (8, 35918315), (10, 28734652), (20, 14367326), (40, 7183663), (59, 4870280), (118, 2435140), (236, 1217570), (295, 974056), (313, 918040), (389, 738680), (472, 608785), (590, 487028), (626, 459020), (778, 369340), (1180, 243514), (1252, 229510), (1556, 184670), (1565, 183608), (1945, 147736), (2360, 121757), (2504, 114755), (3112, 92335), (3130, 91804), (3890, 73868), (6260, 45902), (7780, 36934), (12520, 22951), (15560, 18467)]