19798240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1607}}^1$

素因数の和:1640

約数の個数: 96

約数和(自身を含む): 58351104

約数和(自身を除く): 38552864

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 352, 385, 440, 560, 616, 770, 880, 1120, 1232, 1540, 1607, 1760, 2464, 3080, 3214, 6160, 6428, 8035, 11249, 12320, 12856, 16070, 17677, 22498, 25712, 32140, 35354, 44996, 51424, 56245, 64280, 70708, 88385, 89992, 112490, 123739, 128560, 141416, 176770, 179984, 224980, 247478, 257120, 282832, 353540, 359968, 449960, 494956, 565664, 618695, 707080, 899920, 989912, 1237390, 1414160, 1799840, 1979824, 2474780, 2828320, 3959648, 4949560, 9899120, 19798240]

約数ペア:

[(1, 19798240), (2, 9899120), (4, 4949560), (5, 3959648), (7, 2828320), (8, 2474780), (10, 1979824), (11, 1799840), (14, 1414160), (16, 1237390), (20, 989912), (22, 899920), (28, 707080), (32, 618695), (35, 565664), (40, 494956), (44, 449960), (55, 359968), (56, 353540), (70, 282832), (77, 257120), (80, 247478), (88, 224980), (110, 179984), (112, 176770), (140, 141416), (154, 128560), (160, 123739), (176, 112490), (220, 89992), (224, 88385), (280, 70708), (308, 64280), (352, 56245), (385, 51424), (440, 44996), (560, 35354), (616, 32140), (770, 25712), (880, 22498), (1120, 17677), (1232, 16070), (1540, 12856), (1607, 12320), (1760, 11249), (2464, 8035), (3080, 6428), (3214, 6160)]