28204560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{911}}^1$

素因数の和:973

約数の個数: 120

約数和(自身を含む): 97029504

約数和(自身を除く): 68824944

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 911, 1032, 1290, 1548, 1720, 1822, 1935, 2064, 2580, 2733, 3096, 3440, 3644, 3870, 4555, 5160, 5466, 6192, 7288, 7740, 8199, 9110, 10320, 10932, 13665, 14576, 15480, 16398, 18220, 21864, 27330, 30960, 32796, 36440, 39173, 40995, 43728, 54660, 65592, 72880, 78346, 81990, 109320, 117519, 131184, 156692, 163980, 195865, 218640, 235038, 313384, 327960, 352557, 391730, 470076, 587595, 626768, 655920, 705114, 783460, 940152, 1175190, 1410228, 1566920, 1762785, 1880304, 2350380, 2820456, 3133840, 3525570, 4700760, 5640912, 7051140, 9401520, 14102280, 28204560]

約数ペア:

[(1, 28204560), (2, 14102280), (3, 9401520), (4, 7051140), (5, 5640912), (6, 4700760), (8, 3525570), (9, 3133840), (10, 2820456), (12, 2350380), (15, 1880304), (16, 1762785), (18, 1566920), (20, 1410228), (24, 1175190), (30, 940152), (36, 783460), (40, 705114), (43, 655920), (45, 626768), (48, 587595), (60, 470076), (72, 391730), (80, 352557), (86, 327960), (90, 313384), (120, 235038), (129, 218640), (144, 195865), (172, 163980), (180, 156692), (215, 131184), (240, 117519), (258, 109320), (344, 81990), (360, 78346), (387, 72880), (430, 65592), (516, 54660), (645, 43728), (688, 40995), (720, 39173), (774, 36440), (860, 32796), (911, 30960), (1032, 27330), (1290, 21864), (1548, 18220), (1720, 16398), (1822, 15480), (1935, 14576), (2064, 13665), (2580, 10932), (2733, 10320), (3096, 9110), (3440, 8199), (3644, 7740), (3870, 7288), (4555, 6192), (5160, 5466)]