20459500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 29073620

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 29, 34, 50, 58, 68, 83, 85, 100, 116, 125, 145, 166, 170, 250, 290, 332, 340, 415, 425, 493, 500, 580, 725, 830, 850, 986, 1411, 1450, 1660, 1700, 1972, 2075, 2125, 2407, 2465, 2822, 2900, 3625, 4150, 4250, 4814, 4930, 5644, 7055, 7250, 8300, 8500, 9628, 9860, 10375, 12035, 12325, 14110, 14500, 20750, 24070, 24650, 28220, 35275, 40919, 41500, 48140, 49300, 60175, 61625, 70550, 81838, 120350, 123250, 141100, 163676, 176375, 204595, 240700, 246500, 300875, 352750, 409190, 601750, 705500, 818380, 1022975, 1203500, 2045950, 4091900, 5114875, 10229750, 20459500]

約数ペア:

[(1, 20459500), (2, 10229750), (4, 5114875), (5, 4091900), (10, 2045950), (17, 1203500), (20, 1022975), (25, 818380), (29, 705500), (34, 601750), (50, 409190), (58, 352750), (68, 300875), (83, 246500), (85, 240700), (100, 204595), (116, 176375), (125, 163676), (145, 141100), (166, 123250), (170, 120350), (250, 81838), (290, 70550), (332, 61625), (340, 60175), (415, 49300), (425, 48140), (493, 41500), (500, 40919), (580, 35275), (725, 28220), (830, 24650), (850, 24070), (986, 20750), (1411, 14500), (1450, 14110), (1660, 12325), (1700, 12035), (1972, 10375), (2075, 9860), (2125, 9628), (2407, 8500), (2465, 8300), (2822, 7250), (2900, 7055), (3625, 5644), (4150, 4930), (4250, 4814)]