198117700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{463}}^1$

素因数の和:877

約数の個数: 72

約数和(自身を含む): 471219840

約数和(自身を除く): 273102140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 389, 463, 550, 778, 926, 1100, 1556, 1852, 1945, 2315, 3890, 4279, 4630, 5093, 7780, 8558, 9260, 9725, 10186, 11575, 17116, 19450, 20372, 21395, 23150, 25465, 38900, 42790, 46300, 50930, 85580, 101860, 106975, 127325, 180107, 213950, 254650, 360214, 427900, 509300, 720428, 900535, 1801070, 1981177, 3602140, 3962354, 4502675, 7924708, 9005350, 9905885, 18010700, 19811770, 39623540, 49529425, 99058850, 198117700]

約数ペア:

[(1, 198117700), (2, 99058850), (4, 49529425), (5, 39623540), (10, 19811770), (11, 18010700), (20, 9905885), (22, 9005350), (25, 7924708), (44, 4502675), (50, 3962354), (55, 3602140), (100, 1981177), (110, 1801070), (220, 900535), (275, 720428), (389, 509300), (463, 427900), (550, 360214), (778, 254650), (926, 213950), (1100, 180107), (1556, 127325), (1852, 106975), (1945, 101860), (2315, 85580), (3890, 50930), (4279, 46300), (4630, 42790), (5093, 38900), (7780, 25465), (8558, 23150), (9260, 21395), (9725, 20372), (10186, 19450), (11575, 17116)]