78563920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 191416320

約数和(自身を除く): 112852400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 79, 80, 124, 155, 158, 248, 310, 316, 395, 401, 496, 620, 632, 790, 802, 1240, 1264, 1580, 1604, 2005, 2449, 2480, 3160, 3208, 4010, 4898, 6320, 6416, 8020, 9796, 12245, 12431, 16040, 19592, 24490, 24862, 31679, 32080, 39184, 48980, 49724, 62155, 63358, 97960, 99448, 124310, 126716, 158395, 195920, 198896, 248620, 253432, 316790, 497240, 506864, 633580, 982049, 994480, 1267160, 1964098, 2534320, 3928196, 4910245, 7856392, 9820490, 15712784, 19640980, 39281960, 78563920]

約数ペア:

[(1, 78563920), (2, 39281960), (4, 19640980), (5, 15712784), (8, 9820490), (10, 7856392), (16, 4910245), (20, 3928196), (31, 2534320), (40, 1964098), (62, 1267160), (79, 994480), (80, 982049), (124, 633580), (155, 506864), (158, 497240), (248, 316790), (310, 253432), (316, 248620), (395, 198896), (401, 195920), (496, 158395), (620, 126716), (632, 124310), (790, 99448), (802, 97960), (1240, 63358), (1264, 62155), (1580, 49724), (1604, 48980), (2005, 39184), (2449, 32080), (2480, 31679), (3160, 24862), (3208, 24490), (4010, 19592), (4898, 16040), (6320, 12431), (6416, 12245), (8020, 9796)]