78877280

素因数分解:

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

素因数の和:696

約数の個数: 96

約数和(自身を含む): 201833856

約数和(自身を除く): 122956576

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 68, 80, 85, 94, 136, 160, 170, 188, 235, 272, 340, 376, 470, 544, 617, 680, 752, 799, 940, 1234, 1360, 1504, 1598, 1880, 2468, 2720, 3085, 3196, 3760, 3995, 4936, 6170, 6392, 7520, 7990, 9872, 10489, 12340, 12784, 15980, 19744, 20978, 24680, 25568, 28999, 31960, 41956, 49360, 52445, 57998, 63920, 83912, 98720, 104890, 115996, 127840, 144995, 167824, 209780, 231992, 289990, 335648, 419560, 463984, 492983, 579980, 839120, 927968, 985966, 1159960, 1678240, 1971932, 2319920, 2464915, 3943864, 4639840, 4929830, 7887728, 9859660, 15775456, 19719320, 39438640, 78877280]

約数ペア:

[(1, 78877280), (2, 39438640), (4, 19719320), (5, 15775456), (8, 9859660), (10, 7887728), (16, 4929830), (17, 4639840), (20, 3943864), (32, 2464915), (34, 2319920), (40, 1971932), (47, 1678240), (68, 1159960), (80, 985966), (85, 927968), (94, 839120), (136, 579980), (160, 492983), (170, 463984), (188, 419560), (235, 335648), (272, 289990), (340, 231992), (376, 209780), (470, 167824), (544, 144995), (617, 127840), (680, 115996), (752, 104890), (799, 98720), (940, 83912), (1234, 63920), (1360, 57998), (1504, 52445), (1598, 49360), (1880, 41956), (2468, 31960), (2720, 28999), (3085, 25568), (3196, 24680), (3760, 20978), (3995, 19744), (4936, 15980), (6170, 12784), (6392, 12340), (7520, 10489), (7990, 9872)]