78103480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:573

約数の個数: 128

約数和(自身を含む): 221760000

約数和(自身を除く): 143656520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 43, 52, 56, 65, 70, 86, 91, 104, 130, 140, 172, 182, 215, 260, 280, 301, 344, 364, 430, 455, 499, 520, 559, 602, 728, 860, 910, 998, 1118, 1204, 1505, 1720, 1820, 1996, 2236, 2408, 2495, 2795, 3010, 3493, 3640, 3913, 3992, 4472, 4990, 5590, 6020, 6487, 6986, 7826, 9980, 11180, 12040, 12974, 13972, 15652, 17465, 19565, 19960, 21457, 22360, 25948, 27944, 31304, 32435, 34930, 39130, 42914, 45409, 51896, 64870, 69860, 78260, 85828, 90818, 107285, 129740, 139720, 150199, 156520, 171656, 181636, 214570, 227045, 259480, 278941, 300398, 363272, 429140, 454090, 557882, 600796, 750995, 858280, 908180, 1115764, 1201592, 1394705, 1501990, 1816360, 1952587, 2231528, 2789410, 3003980, 3905174, 5578820, 6007960, 7810348, 9762935, 11157640, 15620696, 19525870, 39051740, 78103480]

約数ペア:

[(1, 78103480), (2, 39051740), (4, 19525870), (5, 15620696), (7, 11157640), (8, 9762935), (10, 7810348), (13, 6007960), (14, 5578820), (20, 3905174), (26, 3003980), (28, 2789410), (35, 2231528), (40, 1952587), (43, 1816360), (52, 1501990), (56, 1394705), (65, 1201592), (70, 1115764), (86, 908180), (91, 858280), (104, 750995), (130, 600796), (140, 557882), (172, 454090), (182, 429140), (215, 363272), (260, 300398), (280, 278941), (301, 259480), (344, 227045), (364, 214570), (430, 181636), (455, 171656), (499, 156520), (520, 150199), (559, 139720), (602, 129740), (728, 107285), (860, 90818), (910, 85828), (998, 78260), (1118, 69860), (1204, 64870), (1505, 51896), (1720, 45409), (1820, 42914), (1996, 39130), (2236, 34930), (2408, 32435), (2495, 31304), (2795, 27944), (3010, 25948), (3493, 22360), (3640, 21457), (3913, 19960), (3992, 19565), (4472, 17465), (4990, 15652), (5590, 13972), (6020, 12974), (6487, 12040), (6986, 11180), (7826, 9980)]