28436720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:802

約数の個数: 80

約数和(自身を含む): 73224480

約数和(自身を除く): 44787760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 481, 520, 592, 739, 740, 962, 1040, 1478, 1480, 1924, 2405, 2956, 2960, 3695, 3848, 4810, 5912, 7390, 7696, 9607, 9620, 11824, 14780, 19214, 19240, 27343, 29560, 38428, 38480, 48035, 54686, 59120, 76856, 96070, 109372, 136715, 153712, 192140, 218744, 273430, 355459, 384280, 437488, 546860, 710918, 768560, 1093720, 1421836, 1777295, 2187440, 2843672, 3554590, 5687344, 7109180, 14218360, 28436720]

約数ペア:

[(1, 28436720), (2, 14218360), (4, 7109180), (5, 5687344), (8, 3554590), (10, 2843672), (13, 2187440), (16, 1777295), (20, 1421836), (26, 1093720), (37, 768560), (40, 710918), (52, 546860), (65, 437488), (74, 384280), (80, 355459), (104, 273430), (130, 218744), (148, 192140), (185, 153712), (208, 136715), (260, 109372), (296, 96070), (370, 76856), (481, 59120), (520, 54686), (592, 48035), (739, 38480), (740, 38428), (962, 29560), (1040, 27343), (1478, 19240), (1480, 19214), (1924, 14780), (2405, 11824), (2956, 9620), (2960, 9607), (3695, 7696), (3848, 7390), (4810, 5912)]