78687280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{619}}^1$

素因数の和:866

約数の個数: 80

約数和(自身を含む): 210343680

約数和(自身を除く): 131656400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 227, 280, 454, 560, 619, 908, 1135, 1238, 1589, 1816, 2270, 2476, 3095, 3178, 3632, 4333, 4540, 4952, 6190, 6356, 7945, 8666, 9080, 9904, 12380, 12712, 15890, 17332, 18160, 21665, 24760, 25424, 31780, 34664, 43330, 49520, 63560, 69328, 86660, 127120, 140513, 173320, 281026, 346640, 562052, 702565, 983591, 1124104, 1405130, 1967182, 2248208, 2810260, 3934364, 4917955, 5620520, 7868728, 9835910, 11241040, 15737456, 19671820, 39343640, 78687280]

約数ペア:

[(1, 78687280), (2, 39343640), (4, 19671820), (5, 15737456), (7, 11241040), (8, 9835910), (10, 7868728), (14, 5620520), (16, 4917955), (20, 3934364), (28, 2810260), (35, 2248208), (40, 1967182), (56, 1405130), (70, 1124104), (80, 983591), (112, 702565), (140, 562052), (227, 346640), (280, 281026), (454, 173320), (560, 140513), (619, 127120), (908, 86660), (1135, 69328), (1238, 63560), (1589, 49520), (1816, 43330), (2270, 34664), (2476, 31780), (3095, 25424), (3178, 24760), (3632, 21665), (4333, 18160), (4540, 17332), (4952, 15890), (6190, 12712), (6356, 12380), (7945, 9904), (8666, 9080)]