19719320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{617}}^1$

素因数の和:692

約数の個数: 64

約数和(自身を含む): 48055680

約数和(自身を除く): 28336360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 85, 94, 136, 170, 188, 235, 340, 376, 470, 617, 680, 799, 940, 1234, 1598, 1880, 2468, 3085, 3196, 3995, 4936, 6170, 6392, 7990, 10489, 12340, 15980, 20978, 24680, 28999, 31960, 41956, 52445, 57998, 83912, 104890, 115996, 144995, 209780, 231992, 289990, 419560, 492983, 579980, 985966, 1159960, 1971932, 2464915, 3943864, 4929830, 9859660, 19719320]

約数ペア:

[(1, 19719320), (2, 9859660), (4, 4929830), (5, 3943864), (8, 2464915), (10, 1971932), (17, 1159960), (20, 985966), (34, 579980), (40, 492983), (47, 419560), (68, 289990), (85, 231992), (94, 209780), (136, 144995), (170, 115996), (188, 104890), (235, 83912), (340, 57998), (376, 52445), (470, 41956), (617, 31960), (680, 28999), (799, 24680), (940, 20978), (1234, 15980), (1598, 12340), (1880, 10489), (2468, 7990), (3085, 6392), (3196, 6170), (3995, 4936)]