257940400

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^3\times {\mathrm{53}}^1$

素因数の和:140

約数の個数: 120

約数和(自身を含む): 660091680

約数和(自身を除く): 402151280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 53, 80, 92, 100, 106, 115, 184, 200, 212, 230, 265, 368, 400, 424, 460, 529, 530, 575, 848, 920, 1058, 1060, 1150, 1219, 1325, 1840, 2116, 2120, 2300, 2438, 2645, 2650, 4232, 4240, 4600, 4876, 5290, 5300, 6095, 8464, 9200, 9752, 10580, 10600, 12167, 12190, 13225, 19504, 21160, 21200, 24334, 24380, 26450, 28037, 30475, 42320, 48668, 48760, 52900, 56074, 60835, 60950, 97336, 97520, 105800, 112148, 121670, 121900, 140185, 194672, 211600, 224296, 243340, 243800, 280370, 304175, 448592, 486680, 487600, 560740, 608350, 644851, 700925, 973360, 1121480, 1216700, 1289702, 1401850, 2242960, 2433400, 2579404, 2803700, 3224255, 4866800, 5158808, 5607400, 6448510, 10317616, 11214800, 12897020, 16121275, 25794040, 32242550, 51588080, 64485100, 128970200, 257940400]

約数ペア:

[(1, 257940400), (2, 128970200), (4, 64485100), (5, 51588080), (8, 32242550), (10, 25794040), (16, 16121275), (20, 12897020), (23, 11214800), (25, 10317616), (40, 6448510), (46, 5607400), (50, 5158808), (53, 4866800), (80, 3224255), (92, 2803700), (100, 2579404), (106, 2433400), (115, 2242960), (184, 1401850), (200, 1289702), (212, 1216700), (230, 1121480), (265, 973360), (368, 700925), (400, 644851), (424, 608350), (460, 560740), (529, 487600), (530, 486680), (575, 448592), (848, 304175), (920, 280370), (1058, 243800), (1060, 243340), (1150, 224296), (1219, 211600), (1325, 194672), (1840, 140185), (2116, 121900), (2120, 121670), (2300, 112148), (2438, 105800), (2645, 97520), (2650, 97336), (4232, 60950), (4240, 60835), (4600, 56074), (4876, 52900), (5290, 48760), (5300, 48668), (6095, 42320), (8464, 30475), (9200, 28037), (9752, 26450), (10580, 24380), (10600, 24334), (12167, 21200), (12190, 21160), (13225, 19504)]