128418360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{152879}}^1$

素因数の和:152900

約数の個数: 64

約数和(自身を含む): 440294400

約数和(自身を除く): 311876040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 152879, 305758, 458637, 611516, 764395, 917274, 1070153, 1223032, 1528790, 1834548, 2140306, 2293185, 3057580, 3210459, 3669096, 4280612, 4586370, 5350765, 6115160, 6420918, 8561224, 9172740, 10701530, 12841836, 16052295, 18345480, 21403060, 25683672, 32104590, 42806120, 64209180, 128418360]

約数ペア:

[(1, 128418360), (2, 64209180), (3, 42806120), (4, 32104590), (5, 25683672), (6, 21403060), (7, 18345480), (8, 16052295), (10, 12841836), (12, 10701530), (14, 9172740), (15, 8561224), (20, 6420918), (21, 6115160), (24, 5350765), (28, 4586370), (30, 4280612), (35, 3669096), (40, 3210459), (42, 3057580), (56, 2293185), (60, 2140306), (70, 1834548), (84, 1528790), (105, 1223032), (120, 1070153), (140, 917274), (168, 764395), (210, 611516), (280, 458637), (420, 305758), (840, 152879)]