81856080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4943}}^1$

素因数の和:4985

約数の個数: 120

約数和(自身を含む): 286910208

約数和(自身を除く): 205054128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 115, 120, 138, 144, 180, 184, 207, 230, 240, 276, 345, 360, 368, 414, 460, 552, 690, 720, 828, 920, 1035, 1104, 1380, 1656, 1840, 2070, 2760, 3312, 4140, 4943, 5520, 8280, 9886, 14829, 16560, 19772, 24715, 29658, 39544, 44487, 49430, 59316, 74145, 79088, 88974, 98860, 113689, 118632, 148290, 177948, 197720, 222435, 227378, 237264, 296580, 341067, 355896, 395440, 444870, 454756, 568445, 593160, 682134, 711792, 889740, 909512, 1023201, 1136890, 1186320, 1364268, 1705335, 1779480, 1819024, 2046402, 2273780, 2728536, 3410670, 3558960, 4092804, 4547560, 5116005, 5457072, 6821340, 8185608, 9095120, 10232010, 13642680, 16371216, 20464020, 27285360, 40928040, 81856080]

約数ペア:

[(1, 81856080), (2, 40928040), (3, 27285360), (4, 20464020), (5, 16371216), (6, 13642680), (8, 10232010), (9, 9095120), (10, 8185608), (12, 6821340), (15, 5457072), (16, 5116005), (18, 4547560), (20, 4092804), (23, 3558960), (24, 3410670), (30, 2728536), (36, 2273780), (40, 2046402), (45, 1819024), (46, 1779480), (48, 1705335), (60, 1364268), (69, 1186320), (72, 1136890), (80, 1023201), (90, 909512), (92, 889740), (115, 711792), (120, 682134), (138, 593160), (144, 568445), (180, 454756), (184, 444870), (207, 395440), (230, 355896), (240, 341067), (276, 296580), (345, 237264), (360, 227378), (368, 222435), (414, 197720), (460, 177948), (552, 148290), (690, 118632), (720, 113689), (828, 98860), (920, 88974), (1035, 79088), (1104, 74145), (1380, 59316), (1656, 49430), (1840, 44487), (2070, 39544), (2760, 29658), (3312, 24715), (4140, 19772), (4943, 16560), (5520, 14829), (8280, 9886)]