64940480

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1018

約数の個数: 112

約数和(自身を含む): 177759360

約数和(自身を除く): 112818880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 64, 76, 80, 88, 95, 110, 152, 160, 176, 190, 209, 220, 304, 320, 352, 380, 418, 440, 608, 704, 760, 836, 880, 971, 1045, 1216, 1520, 1672, 1760, 1942, 2090, 3040, 3344, 3520, 3884, 4180, 4855, 6080, 6688, 7768, 8360, 9710, 10681, 13376, 15536, 16720, 18449, 19420, 21362, 31072, 33440, 36898, 38840, 42724, 53405, 62144, 66880, 73796, 77680, 85448, 92245, 106810, 147592, 155360, 170896, 184490, 202939, 213620, 295184, 310720, 341792, 368980, 405878, 427240, 590368, 683584, 737960, 811756, 854480, 1014695, 1180736, 1475920, 1623512, 1708960, 2029390, 2951840, 3247024, 3417920, 4058780, 5903680, 6494048, 8117560, 12988096, 16235120, 32470240, 64940480]

約数ペア:

[(1, 64940480), (2, 32470240), (4, 16235120), (5, 12988096), (8, 8117560), (10, 6494048), (11, 5903680), (16, 4058780), (19, 3417920), (20, 3247024), (22, 2951840), (32, 2029390), (38, 1708960), (40, 1623512), (44, 1475920), (55, 1180736), (64, 1014695), (76, 854480), (80, 811756), (88, 737960), (95, 683584), (110, 590368), (152, 427240), (160, 405878), (176, 368980), (190, 341792), (209, 310720), (220, 295184), (304, 213620), (320, 202939), (352, 184490), (380, 170896), (418, 155360), (440, 147592), (608, 106810), (704, 92245), (760, 85448), (836, 77680), (880, 73796), (971, 66880), (1045, 62144), (1216, 53405), (1520, 42724), (1672, 38840), (1760, 36898), (1942, 33440), (2090, 31072), (3040, 21362), (3344, 19420), (3520, 18449), (3884, 16720), (4180, 15536), (4855, 13376), (6080, 10681), (6688, 9710), (7768, 8360)]