81776760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 256

約数和(自身を含む): 290304000

約数和(自身を除く): 208527240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 31, 38, 39, 40, 52, 57, 60, 62, 65, 76, 78, 89, 93, 95, 104, 114, 120, 124, 130, 152, 155, 156, 178, 186, 190, 195, 228, 247, 248, 260, 267, 285, 310, 312, 356, 372, 380, 390, 403, 445, 456, 465, 494, 520, 534, 570, 589, 620, 712, 741, 744, 760, 780, 806, 890, 930, 988, 1068, 1140, 1157, 1178, 1209, 1235, 1240, 1335, 1482, 1560, 1612, 1691, 1767, 1780, 1860, 1976, 2015, 2136, 2280, 2314, 2356, 2418, 2470, 2670, 2759, 2945, 2964, 3224, 3382, 3471, 3534, 3560, 3705, 3720, 4030, 4628, 4712, 4836, 4940, 5073, 5340, 5518, 5785, 5890, 5928, 6045, 6764, 6942, 7068, 7410, 7657, 8060, 8277, 8455, 8835, 9256, 9672, 9880, 10146, 10680, 11036, 11570, 11780, 12090, 13528, 13795, 13884, 14136, 14820, 15314, 16120, 16554, 16910, 17355, 17670, 20292, 21983, 22072, 22971, 23140, 23560, 24180, 25365, 27590, 27768, 29640, 30628, 33108, 33820, 34710, 35340, 35867, 38285, 40584, 41385, 43966, 45942, 46280, 48360, 50730, 52421, 55180, 61256, 65949, 66216, 67640, 69420, 70680, 71734, 76570, 82770, 87932, 91884, 101460, 104842, 107601, 109915, 110360, 114855, 131898, 138840, 143468, 153140, 157263, 165540, 175864, 179335, 183768, 202920, 209684, 215202, 219830, 229710, 262105, 263796, 286936, 306280, 314526, 329745, 331080, 358670, 419368, 430404, 439660, 459420, 524210, 527592, 538005, 629052, 659490, 681473, 717340, 786315, 860808, 879320, 918840, 1048420, 1076010, 1258104, 1318980, 1362946, 1434680, 1572630, 2044419, 2096840, 2152020, 2637960, 2725892, 3145260, 3407365, 4088838, 4304040, 5451784, 6290520, 6814730, 8177676, 10222095, 13629460, 16355352, 20444190, 27258920, 40888380, 81776760]

約数ペア:

[(1, 81776760), (2, 40888380), (3, 27258920), (4, 20444190), (5, 16355352), (6, 13629460), (8, 10222095), (10, 8177676), (12, 6814730), (13, 6290520), (15, 5451784), (19, 4304040), (20, 4088838), (24, 3407365), (26, 3145260), (30, 2725892), (31, 2637960), (38, 2152020), (39, 2096840), (40, 2044419), (52, 1572630), (57, 1434680), (60, 1362946), (62, 1318980), (65, 1258104), (76, 1076010), (78, 1048420), (89, 918840), (93, 879320), (95, 860808), (104, 786315), (114, 717340), (120, 681473), (124, 659490), (130, 629052), (152, 538005), (155, 527592), (156, 524210), (178, 459420), (186, 439660), (190, 430404), (195, 419368), (228, 358670), (247, 331080), (248, 329745), (260, 314526), (267, 306280), (285, 286936), (310, 263796), (312, 262105), (356, 229710), (372, 219830), (380, 215202), (390, 209684), (403, 202920), (445, 183768), (456, 179335), (465, 175864), (494, 165540), (520, 157263), (534, 153140), (570, 143468), (589, 138840), (620, 131898), (712, 114855), (741, 110360), (744, 109915), (760, 107601), (780, 104842), (806, 101460), (890, 91884), (930, 87932), (988, 82770), (1068, 76570), (1140, 71734), (1157, 70680), (1178, 69420), (1209, 67640), (1235, 66216), (1240, 65949), (1335, 61256), (1482, 55180), (1560, 52421), (1612, 50730), (1691, 48360), (1767, 46280), (1780, 45942), (1860, 43966), (1976, 41385), (2015, 40584), (2136, 38285), (2280, 35867), (2314, 35340), (2356, 34710), (2418, 33820), (2470, 33108), (2670, 30628), (2759, 29640), (2945, 27768), (2964, 27590), (3224, 25365), (3382, 24180), (3471, 23560), (3534, 23140), (3560, 22971), (3705, 22072), (3720, 21983), (4030, 20292), (4628, 17670), (4712, 17355), (4836, 16910), (4940, 16554), (5073, 16120), (5340, 15314), (5518, 14820), (5785, 14136), (5890, 13884), (5928, 13795), (6045, 13528), (6764, 12090), (6942, 11780), (7068, 11570), (7410, 11036), (7657, 10680), (8060, 10146), (8277, 9880), (8455, 9672), (8835, 9256)]