20872500

素因数分解:

$2^2\times 3^1\times 5^4\times {\mathrm{11}}^2\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 180

約数和(自身を含む): 69802656

約数和(自身を除く): 48930156

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 23, 25, 30, 33, 44, 46, 50, 55, 60, 66, 69, 75, 92, 100, 110, 115, 121, 125, 132, 138, 150, 165, 220, 230, 242, 250, 253, 275, 276, 300, 330, 345, 363, 375, 460, 484, 500, 506, 550, 575, 605, 625, 660, 690, 726, 750, 759, 825, 1012, 1100, 1150, 1210, 1250, 1265, 1375, 1380, 1452, 1500, 1518, 1650, 1725, 1815, 1875, 2300, 2420, 2500, 2530, 2750, 2783, 2875, 3025, 3036, 3300, 3450, 3630, 3750, 3795, 4125, 5060, 5500, 5566, 5750, 6050, 6325, 6875, 6900, 7260, 7500, 7590, 8250, 8349, 8625, 9075, 11132, 11500, 12100, 12650, 13750, 13915, 14375, 15125, 15180, 16500, 16698, 17250, 18150, 18975, 20625, 25300, 27500, 27830, 28750, 30250, 31625, 33396, 34500, 36300, 37950, 41250, 41745, 43125, 45375, 55660, 57500, 60500, 63250, 69575, 75625, 75900, 82500, 83490, 86250, 90750, 94875, 126500, 139150, 151250, 158125, 166980, 172500, 181500, 189750, 208725, 226875, 278300, 302500, 316250, 347875, 379500, 417450, 453750, 474375, 632500, 695750, 834900, 907500, 948750, 1043625, 1391500, 1739375, 1897500, 2087250, 3478750, 4174500, 5218125, 6957500, 10436250, 20872500]

約数ペア:

[(1, 20872500), (2, 10436250), (3, 6957500), (4, 5218125), (5, 4174500), (6, 3478750), (10, 2087250), (11, 1897500), (12, 1739375), (15, 1391500), (20, 1043625), (22, 948750), (23, 907500), (25, 834900), (30, 695750), (33, 632500), (44, 474375), (46, 453750), (50, 417450), (55, 379500), (60, 347875), (66, 316250), (69, 302500), (75, 278300), (92, 226875), (100, 208725), (110, 189750), (115, 181500), (121, 172500), (125, 166980), (132, 158125), (138, 151250), (150, 139150), (165, 126500), (220, 94875), (230, 90750), (242, 86250), (250, 83490), (253, 82500), (275, 75900), (276, 75625), (300, 69575), (330, 63250), (345, 60500), (363, 57500), (375, 55660), (460, 45375), (484, 43125), (500, 41745), (506, 41250), (550, 37950), (575, 36300), (605, 34500), (625, 33396), (660, 31625), (690, 30250), (726, 28750), (750, 27830), (759, 27500), (825, 25300), (1012, 20625), (1100, 18975), (1150, 18150), (1210, 17250), (1250, 16698), (1265, 16500), (1375, 15180), (1380, 15125), (1452, 14375), (1500, 13915), (1518, 13750), (1650, 12650), (1725, 12100), (1815, 11500), (1875, 11132), (2300, 9075), (2420, 8625), (2500, 8349), (2530, 8250), (2750, 7590), (2783, 7500), (2875, 7260), (3025, 6900), (3036, 6875), (3300, 6325), (3450, 6050), (3630, 5750), (3750, 5566), (3795, 5500), (4125, 5060)]