20320320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:428

約数の個数: 112

約数和(自身を含む): 65763648

約数和(自身を除く): 45443328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 160, 183, 192, 240, 244, 305, 320, 347, 366, 480, 488, 610, 694, 732, 915, 960, 976, 1041, 1220, 1388, 1464, 1735, 1830, 1952, 2082, 2440, 2776, 2928, 3470, 3660, 3904, 4164, 4880, 5205, 5552, 5856, 6940, 7320, 8328, 9760, 10410, 11104, 11712, 13880, 14640, 16656, 19520, 20820, 21167, 22208, 27760, 29280, 33312, 41640, 42334, 55520, 58560, 63501, 66624, 83280, 84668, 105835, 111040, 127002, 166560, 169336, 211670, 254004, 317505, 333120, 338672, 423340, 508008, 635010, 677344, 846680, 1016016, 1270020, 1354688, 1693360, 2032032, 2540040, 3386720, 4064064, 5080080, 6773440, 10160160, 20320320]

約数ペア:

[(1, 20320320), (2, 10160160), (3, 6773440), (4, 5080080), (5, 4064064), (6, 3386720), (8, 2540040), (10, 2032032), (12, 1693360), (15, 1354688), (16, 1270020), (20, 1016016), (24, 846680), (30, 677344), (32, 635010), (40, 508008), (48, 423340), (60, 338672), (61, 333120), (64, 317505), (80, 254004), (96, 211670), (120, 169336), (122, 166560), (160, 127002), (183, 111040), (192, 105835), (240, 84668), (244, 83280), (305, 66624), (320, 63501), (347, 58560), (366, 55520), (480, 42334), (488, 41640), (610, 33312), (694, 29280), (732, 27760), (915, 22208), (960, 21167), (976, 20820), (1041, 19520), (1220, 16656), (1388, 14640), (1464, 13880), (1735, 11712), (1830, 11104), (1952, 10410), (2082, 9760), (2440, 8328), (2776, 7320), (2928, 6940), (3470, 5856), (3660, 5552), (3904, 5205), (4164, 4880)]