20679750

素因数分解:

$2^1\times 3^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:144

約数の個数: 192

約数和(自身を含む): 69503616

約数和(自身を除く): 48823866

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 101, 105, 117, 125, 126, 130, 150, 175, 182, 195, 202, 210, 225, 234, 250, 273, 303, 315, 325, 350, 375, 390, 450, 455, 505, 525, 546, 585, 606, 630, 650, 707, 750, 819, 875, 909, 910, 975, 1010, 1050, 1125, 1170, 1313, 1365, 1414, 1515, 1575, 1625, 1638, 1750, 1818, 1950, 2121, 2250, 2275, 2525, 2625, 2626, 2730, 2925, 3030, 3150, 3250, 3535, 3939, 4095, 4242, 4545, 4550, 4875, 5050, 5250, 5850, 6363, 6565, 6825, 7070, 7575, 7875, 7878, 8190, 9090, 9191, 9750, 10605, 11375, 11817, 12625, 12726, 13130, 13650, 14625, 15150, 15750, 17675, 18382, 19695, 20475, 21210, 22725, 22750, 23634, 25250, 27573, 29250, 31815, 32825, 34125, 35350, 37875, 39390, 40950, 45450, 45955, 53025, 55146, 59085, 63630, 65650, 68250, 75750, 82719, 88375, 91910, 98475, 102375, 106050, 113625, 118170, 137865, 159075, 164125, 165438, 176750, 196950, 204750, 227250, 229775, 265125, 275730, 295425, 318150, 328250, 413595, 459550, 492375, 530250, 590850, 689325, 795375, 827190, 984750, 1148875, 1378650, 1477125, 1590750, 2067975, 2297750, 2954250, 3446625, 4135950, 6893250, 10339875, 20679750]

約数ペア:

[(1, 20679750), (2, 10339875), (3, 6893250), (5, 4135950), (6, 3446625), (7, 2954250), (9, 2297750), (10, 2067975), (13, 1590750), (14, 1477125), (15, 1378650), (18, 1148875), (21, 984750), (25, 827190), (26, 795375), (30, 689325), (35, 590850), (39, 530250), (42, 492375), (45, 459550), (50, 413595), (63, 328250), (65, 318150), (70, 295425), (75, 275730), (78, 265125), (90, 229775), (91, 227250), (101, 204750), (105, 196950), (117, 176750), (125, 165438), (126, 164125), (130, 159075), (150, 137865), (175, 118170), (182, 113625), (195, 106050), (202, 102375), (210, 98475), (225, 91910), (234, 88375), (250, 82719), (273, 75750), (303, 68250), (315, 65650), (325, 63630), (350, 59085), (375, 55146), (390, 53025), (450, 45955), (455, 45450), (505, 40950), (525, 39390), (546, 37875), (585, 35350), (606, 34125), (630, 32825), (650, 31815), (707, 29250), (750, 27573), (819, 25250), (875, 23634), (909, 22750), (910, 22725), (975, 21210), (1010, 20475), (1050, 19695), (1125, 18382), (1170, 17675), (1313, 15750), (1365, 15150), (1414, 14625), (1515, 13650), (1575, 13130), (1625, 12726), (1638, 12625), (1750, 11817), (1818, 11375), (1950, 10605), (2121, 9750), (2250, 9191), (2275, 9090), (2525, 8190), (2625, 7878), (2626, 7875), (2730, 7575), (2925, 7070), (3030, 6825), (3150, 6565), (3250, 6363), (3535, 5850), (3939, 5250), (4095, 5050), (4242, 4875), (4545, 4550)]