280000019715

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{123667}}^1$

素因数の和:124388

約数の個数: 64

約数和(自身を含む): 511593739776

約数和(自身を除く): 231593720061

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 683, 1105, 2049, 3315, 3415, 8879, 10245, 11611, 26637, 34833, 44395, 58055, 123667, 133185, 150943, 174165, 371001, 452829, 618335, 754715, 1607671, 1855005, 2102339, 2264145, 4823013, 6307017, 8038355, 10511695, 24115065, 27330407, 31535085, 81991221, 84464561, 136652035, 253393683, 409956105, 422322805, 1098039293, 1266968415, 1435897537, 3294117879, 4307692611, 5490196465, 7179487685, 16470589395, 18666667981, 21538463055, 56000003943, 93333339905, 280000019715]

約数ペア:

[(1, 280000019715), (3, 93333339905), (5, 56000003943), (13, 21538463055), (15, 18666667981), (17, 16470589395), (39, 7179487685), (51, 5490196465), (65, 4307692611), (85, 3294117879), (195, 1435897537), (221, 1266968415), (255, 1098039293), (663, 422322805), (683, 409956105), (1105, 253393683), (2049, 136652035), (3315, 84464561), (3415, 81991221), (8879, 31535085), (10245, 27330407), (11611, 24115065), (26637, 10511695), (34833, 8038355), (44395, 6307017), (58055, 4823013), (123667, 2264145), (133185, 2102339), (150943, 1855005), (174165, 1607671), (371001, 754715), (452829, 618335)]