28646800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1$

素因数の和:825

約数の個数: 120

約数和(自身を含む): 84814016

約数和(自身を除く): 56167216

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 175, 182, 200, 208, 260, 280, 325, 350, 364, 400, 455, 520, 560, 650, 700, 728, 787, 910, 1040, 1300, 1400, 1456, 1574, 1820, 2275, 2600, 2800, 3148, 3640, 3935, 4550, 5200, 5509, 6296, 7280, 7870, 9100, 10231, 11018, 12592, 15740, 18200, 19675, 20462, 22036, 27545, 31480, 36400, 39350, 40924, 44072, 51155, 55090, 62960, 71617, 78700, 81848, 88144, 102310, 110180, 137725, 143234, 157400, 163696, 204620, 220360, 255775, 275450, 286468, 314800, 358085, 409240, 440720, 511550, 550900, 572936, 716170, 818480, 1023100, 1101800, 1145872, 1432340, 1790425, 2046200, 2203600, 2864680, 3580850, 4092400, 5729360, 7161700, 14323400, 28646800]

約数ペア:

[(1, 28646800), (2, 14323400), (4, 7161700), (5, 5729360), (7, 4092400), (8, 3580850), (10, 2864680), (13, 2203600), (14, 2046200), (16, 1790425), (20, 1432340), (25, 1145872), (26, 1101800), (28, 1023100), (35, 818480), (40, 716170), (50, 572936), (52, 550900), (56, 511550), (65, 440720), (70, 409240), (80, 358085), (91, 314800), (100, 286468), (104, 275450), (112, 255775), (130, 220360), (140, 204620), (175, 163696), (182, 157400), (200, 143234), (208, 137725), (260, 110180), (280, 102310), (325, 88144), (350, 81848), (364, 78700), (400, 71617), (455, 62960), (520, 55090), (560, 51155), (650, 44072), (700, 40924), (728, 39350), (787, 36400), (910, 31480), (1040, 27545), (1300, 22036), (1400, 20462), (1456, 19675), (1574, 18200), (1820, 15740), (2275, 12592), (2600, 11018), (2800, 10231), (3148, 9100), (3640, 7870), (3935, 7280), (4550, 6296), (5200, 5509)]