71260520

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{541}}^1$

素因数の和:678

約数の個数: 64

約数和(自身を含む): 166827600

約数和(自身を除く): 95567080

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 89, 148, 178, 185, 296, 356, 370, 445, 541, 712, 740, 890, 1082, 1480, 1780, 2164, 2705, 3293, 3560, 4328, 5410, 6586, 10820, 13172, 16465, 20017, 21640, 26344, 32930, 40034, 48149, 65860, 80068, 96298, 100085, 131720, 160136, 192596, 200170, 240745, 385192, 400340, 481490, 800680, 962980, 1781513, 1925960, 3563026, 7126052, 8907565, 14252104, 17815130, 35630260, 71260520]

約数ペア:

[(1, 71260520), (2, 35630260), (4, 17815130), (5, 14252104), (8, 8907565), (10, 7126052), (20, 3563026), (37, 1925960), (40, 1781513), (74, 962980), (89, 800680), (148, 481490), (178, 400340), (185, 385192), (296, 240745), (356, 200170), (370, 192596), (445, 160136), (541, 131720), (712, 100085), (740, 96298), (890, 80068), (1082, 65860), (1480, 48149), (1780, 40034), (2164, 32930), (2705, 26344), (3293, 21640), (3560, 20017), (4328, 16465), (5410, 13172), (6586, 10820)]