51803120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 128161440

約数和(自身を除く): 76358320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 173, 190, 197, 304, 346, 380, 394, 692, 760, 788, 865, 985, 1384, 1520, 1576, 1730, 1970, 2768, 3152, 3287, 3460, 3743, 3940, 6574, 6920, 7486, 7880, 13148, 13840, 14972, 15760, 16435, 18715, 26296, 29944, 32870, 34081, 37430, 52592, 59888, 65740, 68162, 74860, 131480, 136324, 149720, 170405, 262960, 272648, 299440, 340810, 545296, 647539, 681620, 1295078, 1363240, 2590156, 2726480, 3237695, 5180312, 6475390, 10360624, 12950780, 25901560, 51803120]

約数ペア:

[(1, 51803120), (2, 25901560), (4, 12950780), (5, 10360624), (8, 6475390), (10, 5180312), (16, 3237695), (19, 2726480), (20, 2590156), (38, 1363240), (40, 1295078), (76, 681620), (80, 647539), (95, 545296), (152, 340810), (173, 299440), (190, 272648), (197, 262960), (304, 170405), (346, 149720), (380, 136324), (394, 131480), (692, 74860), (760, 68162), (788, 65740), (865, 59888), (985, 52592), (1384, 37430), (1520, 34081), (1576, 32870), (1730, 29944), (1970, 26296), (2768, 18715), (3152, 16435), (3287, 15760), (3460, 14972), (3743, 13840), (3940, 13148), (6574, 7880), (6920, 7486)]