25901560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 62013600

約数和(自身を除く): 36112040

約数列:

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

約数ペア:

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