19857750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 56609280

約数和(自身を除く): 36751530

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 29, 30, 33, 50, 55, 58, 66, 75, 83, 87, 110, 125, 145, 150, 165, 166, 174, 249, 250, 275, 290, 319, 330, 375, 415, 435, 498, 550, 638, 725, 750, 825, 830, 870, 913, 957, 1245, 1375, 1450, 1595, 1650, 1826, 1914, 2075, 2175, 2407, 2490, 2739, 2750, 3190, 3625, 4125, 4150, 4350, 4565, 4785, 4814, 5478, 6225, 7221, 7250, 7975, 8250, 9130, 9570, 10375, 10875, 12035, 12450, 13695, 14442, 15950, 20750, 21750, 22825, 23925, 24070, 26477, 27390, 31125, 36105, 39875, 45650, 47850, 52954, 60175, 62250, 68475, 72210, 79431, 79750, 114125, 119625, 120350, 132385, 136950, 158862, 180525, 228250, 239250, 264770, 300875, 342375, 361050, 397155, 601750, 661925, 684750, 794310, 902625, 1323850, 1805250, 1985775, 3309625, 3971550, 6619250, 9928875, 19857750]

約数ペア:

[(1, 19857750), (2, 9928875), (3, 6619250), (5, 3971550), (6, 3309625), (10, 1985775), (11, 1805250), (15, 1323850), (22, 902625), (25, 794310), (29, 684750), (30, 661925), (33, 601750), (50, 397155), (55, 361050), (58, 342375), (66, 300875), (75, 264770), (83, 239250), (87, 228250), (110, 180525), (125, 158862), (145, 136950), (150, 132385), (165, 120350), (166, 119625), (174, 114125), (249, 79750), (250, 79431), (275, 72210), (290, 68475), (319, 62250), (330, 60175), (375, 52954), (415, 47850), (435, 45650), (498, 39875), (550, 36105), (638, 31125), (725, 27390), (750, 26477), (825, 24070), (830, 23925), (870, 22825), (913, 21750), (957, 20750), (1245, 15950), (1375, 14442), (1450, 13695), (1595, 12450), (1650, 12035), (1826, 10875), (1914, 10375), (2075, 9570), (2175, 9130), (2407, 8250), (2490, 7975), (2739, 7250), (2750, 7221), (3190, 6225), (3625, 5478), (4125, 4814), (4150, 4785), (4350, 4565)]