81870800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{809}}^1$

素因数の和:861

約数の個数: 120

約数和(自身を含む): 224182080

約数和(自身を除く): 142311280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 25, 40, 44, 46, 50, 55, 80, 88, 92, 100, 110, 115, 176, 184, 200, 220, 230, 253, 275, 368, 400, 440, 460, 506, 550, 575, 809, 880, 920, 1012, 1100, 1150, 1265, 1618, 1840, 2024, 2200, 2300, 2530, 3236, 4045, 4048, 4400, 4600, 5060, 6325, 6472, 8090, 8899, 9200, 10120, 12650, 12944, 16180, 17798, 18607, 20225, 20240, 25300, 32360, 35596, 37214, 40450, 44495, 50600, 64720, 71192, 74428, 80900, 88990, 93035, 101200, 142384, 148856, 161800, 177980, 186070, 204677, 222475, 297712, 323600, 355960, 372140, 409354, 444950, 465175, 711920, 744280, 818708, 889900, 930350, 1023385, 1488560, 1637416, 1779800, 1860700, 2046770, 3274832, 3559600, 3721400, 4093540, 5116925, 7442800, 8187080, 10233850, 16374160, 20467700, 40935400, 81870800]

約数ペア:

[(1, 81870800), (2, 40935400), (4, 20467700), (5, 16374160), (8, 10233850), (10, 8187080), (11, 7442800), (16, 5116925), (20, 4093540), (22, 3721400), (23, 3559600), (25, 3274832), (40, 2046770), (44, 1860700), (46, 1779800), (50, 1637416), (55, 1488560), (80, 1023385), (88, 930350), (92, 889900), (100, 818708), (110, 744280), (115, 711920), (176, 465175), (184, 444950), (200, 409354), (220, 372140), (230, 355960), (253, 323600), (275, 297712), (368, 222475), (400, 204677), (440, 186070), (460, 177980), (506, 161800), (550, 148856), (575, 142384), (809, 101200), (880, 93035), (920, 88990), (1012, 80900), (1100, 74428), (1150, 71192), (1265, 64720), (1618, 50600), (1840, 44495), (2024, 40450), (2200, 37214), (2300, 35596), (2530, 32360), (3236, 25300), (4045, 20240), (4048, 20225), (4400, 18607), (4600, 17798), (5060, 16180), (6325, 12944), (6472, 12650), (8090, 10120), (8899, 9200)]