78778980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{6947}}^1$

素因数の和:6975

約数の個数: 120

約数和(自身を含む): 282477888

約数和(自身を除く): 203698908

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 6947, 11340, 13894, 20841, 27788, 34735, 41682, 48629, 62523, 69470, 83364, 97258, 104205, 125046, 138940, 145887, 187569, 194516, 208410, 243145, 250092, 291774, 312615, 375138, 416820, 437661, 486290, 562707, 583548, 625230, 729435, 750276, 875322, 937845, 972580, 1125414, 1250460, 1312983, 1458870, 1750644, 1875690, 2188305, 2250828, 2625966, 2813535, 2917740, 3751380, 3938949, 4376610, 5251932, 5627070, 6564915, 7877898, 8753220, 11254140, 13129830, 15755796, 19694745, 26259660, 39389490, 78778980]

約数ペア:

[(1, 78778980), (2, 39389490), (3, 26259660), (4, 19694745), (5, 15755796), (6, 13129830), (7, 11254140), (9, 8753220), (10, 7877898), (12, 6564915), (14, 5627070), (15, 5251932), (18, 4376610), (20, 3938949), (21, 3751380), (27, 2917740), (28, 2813535), (30, 2625966), (35, 2250828), (36, 2188305), (42, 1875690), (45, 1750644), (54, 1458870), (60, 1312983), (63, 1250460), (70, 1125414), (81, 972580), (84, 937845), (90, 875322), (105, 750276), (108, 729435), (126, 625230), (135, 583548), (140, 562707), (162, 486290), (180, 437661), (189, 416820), (210, 375138), (252, 312615), (270, 291774), (315, 250092), (324, 243145), (378, 208410), (405, 194516), (420, 187569), (540, 145887), (567, 138940), (630, 125046), (756, 104205), (810, 97258), (945, 83364), (1134, 69470), (1260, 62523), (1620, 48629), (1890, 41682), (2268, 34735), (2835, 27788), (3780, 20841), (5670, 13894), (6947, 11340)]