28811600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:277

約数の個数: 120

約数和(自身を含む): 77495040

約数和(自身を除く): 48683440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 80, 85, 95, 100, 136, 152, 170, 190, 200, 223, 272, 304, 323, 340, 380, 400, 425, 446, 475, 646, 680, 760, 850, 892, 950, 1115, 1292, 1360, 1520, 1615, 1700, 1784, 1900, 2230, 2584, 3230, 3400, 3568, 3791, 3800, 4237, 4460, 5168, 5575, 6460, 6800, 7582, 7600, 8075, 8474, 8920, 11150, 12920, 15164, 16150, 16948, 17840, 18955, 21185, 22300, 25840, 30328, 32300, 33896, 37910, 42370, 44600, 60656, 64600, 67792, 72029, 75820, 84740, 89200, 94775, 105925, 129200, 144058, 151640, 169480, 189550, 211850, 288116, 303280, 338960, 360145, 379100, 423700, 576232, 720290, 758200, 847400, 1152464, 1440580, 1516400, 1694800, 1800725, 2881160, 3601450, 5762320, 7202900, 14405800, 28811600]

約数ペア:

[(1, 28811600), (2, 14405800), (4, 7202900), (5, 5762320), (8, 3601450), (10, 2881160), (16, 1800725), (17, 1694800), (19, 1516400), (20, 1440580), (25, 1152464), (34, 847400), (38, 758200), (40, 720290), (50, 576232), (68, 423700), (76, 379100), (80, 360145), (85, 338960), (95, 303280), (100, 288116), (136, 211850), (152, 189550), (170, 169480), (190, 151640), (200, 144058), (223, 129200), (272, 105925), (304, 94775), (323, 89200), (340, 84740), (380, 75820), (400, 72029), (425, 67792), (446, 64600), (475, 60656), (646, 44600), (680, 42370), (760, 37910), (850, 33896), (892, 32300), (950, 30328), (1115, 25840), (1292, 22300), (1360, 21185), (1520, 18955), (1615, 17840), (1700, 16948), (1784, 16150), (1900, 15164), (2230, 12920), (2584, 11150), (3230, 8920), (3400, 8474), (3568, 8075), (3791, 7600), (3800, 7582), (4237, 6800), (4460, 6460), (5168, 5575)]