66778880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:314

約数の個数: 144

約数和(自身を含む): 189846720

約数和(自身を除く): 123067840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 56, 58, 64, 70, 80, 112, 116, 128, 140, 145, 160, 203, 224, 232, 256, 257, 280, 290, 320, 406, 448, 464, 514, 560, 580, 640, 812, 896, 928, 1015, 1028, 1120, 1160, 1280, 1285, 1624, 1792, 1799, 1856, 2030, 2056, 2240, 2320, 2570, 3248, 3598, 3712, 4060, 4112, 4480, 4640, 5140, 6496, 7196, 7424, 7453, 8120, 8224, 8960, 8995, 9280, 10280, 12992, 14392, 14906, 16240, 16448, 17990, 18560, 20560, 25984, 28784, 29812, 32480, 32896, 35980, 37120, 37265, 41120, 51968, 52171, 57568, 59624, 64960, 65792, 71960, 74530, 82240, 104342, 115136, 119248, 129920, 143920, 149060, 164480, 208684, 230272, 238496, 259840, 260855, 287840, 298120, 328960, 417368, 460544, 476992, 521710, 575680, 596240, 834736, 953984, 1043420, 1151360, 1192480, 1669472, 1907968, 2086840, 2302720, 2384960, 3338944, 4173680, 4769920, 6677888, 8347360, 9539840, 13355776, 16694720, 33389440, 66778880]

約数ペア:

[(1, 66778880), (2, 33389440), (4, 16694720), (5, 13355776), (7, 9539840), (8, 8347360), (10, 6677888), (14, 4769920), (16, 4173680), (20, 3338944), (28, 2384960), (29, 2302720), (32, 2086840), (35, 1907968), (40, 1669472), (56, 1192480), (58, 1151360), (64, 1043420), (70, 953984), (80, 834736), (112, 596240), (116, 575680), (128, 521710), (140, 476992), (145, 460544), (160, 417368), (203, 328960), (224, 298120), (232, 287840), (256, 260855), (257, 259840), (280, 238496), (290, 230272), (320, 208684), (406, 164480), (448, 149060), (464, 143920), (514, 129920), (560, 119248), (580, 115136), (640, 104342), (812, 82240), (896, 74530), (928, 71960), (1015, 65792), (1028, 64960), (1120, 59624), (1160, 57568), (1280, 52171), (1285, 51968), (1624, 41120), (1792, 37265), (1799, 37120), (1856, 35980), (2030, 32896), (2056, 32480), (2240, 29812), (2320, 28784), (2570, 25984), (3248, 20560), (3598, 18560), (3712, 17990), (4060, 16448), (4112, 16240), (4480, 14906), (4640, 14392), (5140, 12992), (6496, 10280), (7196, 9280), (7424, 8995), (7453, 8960), (8120, 8224)]