19691568

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 60617648

約数和(自身を除く): 40926080

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 67, 72, 78, 104, 117, 134, 144, 156, 157, 201, 208, 234, 268, 312, 314, 402, 468, 471, 536, 603, 624, 628, 804, 871, 936, 942, 1072, 1206, 1256, 1413, 1608, 1742, 1872, 1884, 2041, 2412, 2512, 2613, 2826, 3216, 3484, 3768, 4082, 4824, 5226, 5652, 6123, 6968, 7536, 7839, 8164, 9648, 10452, 10519, 11304, 12246, 13936, 15678, 16328, 18369, 20904, 21038, 22608, 24492, 31356, 31557, 32656, 36738, 41808, 42076, 48984, 62712, 63114, 73476, 84152, 94671, 97968, 125424, 126228, 136747, 146952, 168304, 189342, 252456, 273494, 293904, 378684, 410241, 504912, 546988, 757368, 820482, 1093976, 1230723, 1514736, 1640964, 2187952, 2461446, 3281928, 4922892, 6563856, 9845784, 19691568]

約数ペア:

[(1, 19691568), (2, 9845784), (3, 6563856), (4, 4922892), (6, 3281928), (8, 2461446), (9, 2187952), (12, 1640964), (13, 1514736), (16, 1230723), (18, 1093976), (24, 820482), (26, 757368), (36, 546988), (39, 504912), (48, 410241), (52, 378684), (67, 293904), (72, 273494), (78, 252456), (104, 189342), (117, 168304), (134, 146952), (144, 136747), (156, 126228), (157, 125424), (201, 97968), (208, 94671), (234, 84152), (268, 73476), (312, 63114), (314, 62712), (402, 48984), (468, 42076), (471, 41808), (536, 36738), (603, 32656), (624, 31557), (628, 31356), (804, 24492), (871, 22608), (936, 21038), (942, 20904), (1072, 18369), (1206, 16328), (1256, 15678), (1413, 13936), (1608, 12246), (1742, 11304), (1872, 10519), (1884, 10452), (2041, 9648), (2412, 8164), (2512, 7839), (2613, 7536), (2826, 6968), (3216, 6123), (3484, 5652), (3768, 5226), (4082, 4824)]