20570520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 65499840

約数和(自身を除く): 44929320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 37, 40, 41, 60, 74, 82, 111, 113, 120, 123, 148, 164, 185, 205, 222, 226, 246, 296, 328, 339, 370, 410, 444, 452, 492, 555, 565, 615, 678, 740, 820, 888, 904, 984, 1110, 1130, 1230, 1356, 1480, 1517, 1640, 1695, 2220, 2260, 2460, 2712, 3034, 3390, 4181, 4440, 4520, 4551, 4633, 4920, 6068, 6780, 7585, 8362, 9102, 9266, 12136, 12543, 13560, 13899, 15170, 16724, 18204, 18532, 20905, 22755, 23165, 25086, 27798, 30340, 33448, 36408, 37064, 41810, 45510, 46330, 50172, 55596, 60680, 62715, 69495, 83620, 91020, 92660, 100344, 111192, 125430, 138990, 167240, 171421, 182040, 185320, 250860, 277980, 342842, 501720, 514263, 555960, 685684, 857105, 1028526, 1371368, 1714210, 2057052, 2571315, 3428420, 4114104, 5142630, 6856840, 10285260, 20570520]

約数ペア:

[(1, 20570520), (2, 10285260), (3, 6856840), (4, 5142630), (5, 4114104), (6, 3428420), (8, 2571315), (10, 2057052), (12, 1714210), (15, 1371368), (20, 1028526), (24, 857105), (30, 685684), (37, 555960), (40, 514263), (41, 501720), (60, 342842), (74, 277980), (82, 250860), (111, 185320), (113, 182040), (120, 171421), (123, 167240), (148, 138990), (164, 125430), (185, 111192), (205, 100344), (222, 92660), (226, 91020), (246, 83620), (296, 69495), (328, 62715), (339, 60680), (370, 55596), (410, 50172), (444, 46330), (452, 45510), (492, 41810), (555, 37064), (565, 36408), (615, 33448), (678, 30340), (740, 27798), (820, 25086), (888, 23165), (904, 22755), (984, 20905), (1110, 18532), (1130, 18204), (1230, 16724), (1356, 15170), (1480, 13899), (1517, 13560), (1640, 12543), (1695, 12136), (2220, 9266), (2260, 9102), (2460, 8362), (2712, 7585), (3034, 6780), (3390, 6068), (4181, 4920), (4440, 4633), (4520, 4551)]