81195720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{151}}^1\times {\mathrm{4481}}^1$

素因数の和:4646

約数の個数: 64

約数和(自身を含む): 245255040

約数和(自身を除く): 164059320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 151, 302, 453, 604, 755, 906, 1208, 1510, 1812, 2265, 3020, 3624, 4481, 4530, 6040, 8962, 9060, 13443, 17924, 18120, 22405, 26886, 35848, 44810, 53772, 67215, 89620, 107544, 134430, 179240, 268860, 537720, 676631, 1353262, 2029893, 2706524, 3383155, 4059786, 5413048, 6766310, 8119572, 10149465, 13532620, 16239144, 20298930, 27065240, 40597860, 81195720]

約数ペア:

[(1, 81195720), (2, 40597860), (3, 27065240), (4, 20298930), (5, 16239144), (6, 13532620), (8, 10149465), (10, 8119572), (12, 6766310), (15, 5413048), (20, 4059786), (24, 3383155), (30, 2706524), (40, 2029893), (60, 1353262), (120, 676631), (151, 537720), (302, 268860), (453, 179240), (604, 134430), (755, 107544), (906, 89620), (1208, 67215), (1510, 53772), (1812, 44810), (2265, 35848), (3020, 26886), (3624, 22405), (4481, 18120), (4530, 17924), (6040, 13443), (8962, 9060)]