28542800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 80724000

約数和(自身を除く): 52181200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 25, 26, 40, 44, 50, 52, 55, 65, 80, 88, 100, 104, 110, 130, 143, 176, 200, 208, 220, 260, 275, 286, 325, 400, 440, 499, 520, 550, 572, 650, 715, 880, 998, 1040, 1100, 1144, 1300, 1430, 1996, 2200, 2288, 2495, 2600, 2860, 3575, 3992, 4400, 4990, 5200, 5489, 5720, 6487, 7150, 7984, 9980, 10978, 11440, 12475, 12974, 14300, 19960, 21956, 24950, 25948, 27445, 28600, 32435, 39920, 43912, 49900, 51896, 54890, 57200, 64870, 71357, 87824, 99800, 103792, 109780, 129740, 137225, 142714, 162175, 199600, 219560, 259480, 274450, 285428, 324350, 356785, 439120, 518960, 548900, 570856, 648700, 713570, 1097800, 1141712, 1297400, 1427140, 1783925, 2195600, 2594800, 2854280, 3567850, 5708560, 7135700, 14271400, 28542800]

約数ペア:

[(1, 28542800), (2, 14271400), (4, 7135700), (5, 5708560), (8, 3567850), (10, 2854280), (11, 2594800), (13, 2195600), (16, 1783925), (20, 1427140), (22, 1297400), (25, 1141712), (26, 1097800), (40, 713570), (44, 648700), (50, 570856), (52, 548900), (55, 518960), (65, 439120), (80, 356785), (88, 324350), (100, 285428), (104, 274450), (110, 259480), (130, 219560), (143, 199600), (176, 162175), (200, 142714), (208, 137225), (220, 129740), (260, 109780), (275, 103792), (286, 99800), (325, 87824), (400, 71357), (440, 64870), (499, 57200), (520, 54890), (550, 51896), (572, 49900), (650, 43912), (715, 39920), (880, 32435), (998, 28600), (1040, 27445), (1100, 25948), (1144, 24950), (1300, 21956), (1430, 19960), (1996, 14300), (2200, 12974), (2288, 12475), (2495, 11440), (2600, 10978), (2860, 9980), (3575, 7984), (3992, 7150), (4400, 6487), (4990, 5720), (5200, 5489)]