64903240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 165888000

約数和(自身を除く): 100984760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 47, 76, 79, 92, 94, 95, 115, 152, 158, 184, 188, 190, 230, 235, 316, 376, 380, 395, 437, 460, 470, 632, 760, 790, 874, 893, 920, 940, 1081, 1501, 1580, 1748, 1786, 1817, 1880, 2162, 2185, 3002, 3160, 3496, 3572, 3634, 3713, 4324, 4370, 4465, 5405, 6004, 7144, 7268, 7426, 7505, 8648, 8740, 8930, 9085, 10810, 12008, 14536, 14852, 15010, 17480, 17860, 18170, 18565, 20539, 21620, 29704, 30020, 34523, 35720, 36340, 37130, 41078, 43240, 60040, 69046, 70547, 72680, 74260, 82156, 85399, 102695, 138092, 141094, 148520, 164312, 170798, 172615, 205390, 276184, 282188, 341596, 345230, 352735, 410780, 426995, 564376, 683192, 690460, 705470, 821560, 853990, 1380920, 1410940, 1622581, 1707980, 2821880, 3245162, 3415960, 6490324, 8112905, 12980648, 16225810, 32451620, 64903240]

約数ペア:

[(1, 64903240), (2, 32451620), (4, 16225810), (5, 12980648), (8, 8112905), (10, 6490324), (19, 3415960), (20, 3245162), (23, 2821880), (38, 1707980), (40, 1622581), (46, 1410940), (47, 1380920), (76, 853990), (79, 821560), (92, 705470), (94, 690460), (95, 683192), (115, 564376), (152, 426995), (158, 410780), (184, 352735), (188, 345230), (190, 341596), (230, 282188), (235, 276184), (316, 205390), (376, 172615), (380, 170798), (395, 164312), (437, 148520), (460, 141094), (470, 138092), (632, 102695), (760, 85399), (790, 82156), (874, 74260), (893, 72680), (920, 70547), (940, 69046), (1081, 60040), (1501, 43240), (1580, 41078), (1748, 37130), (1786, 36340), (1817, 35720), (1880, 34523), (2162, 30020), (2185, 29704), (3002, 21620), (3160, 20539), (3496, 18565), (3572, 18170), (3634, 17860), (3713, 17480), (4324, 15010), (4370, 14852), (4465, 14536), (5405, 12008), (6004, 10810), (7144, 9085), (7268, 8930), (7426, 8740), (7505, 8648)]