202012480

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 112

約数和(自身を含む): 498896640

約数和(自身を除く): 296884160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 79, 80, 122, 131, 158, 160, 244, 262, 305, 316, 320, 395, 488, 524, 610, 632, 655, 790, 976, 1048, 1220, 1264, 1310, 1580, 1952, 2096, 2440, 2528, 2620, 3160, 3904, 4192, 4819, 4880, 5056, 5240, 6320, 7991, 8384, 9638, 9760, 10349, 10480, 12640, 15982, 19276, 19520, 20698, 20960, 24095, 25280, 31964, 38552, 39955, 41396, 41920, 48190, 51745, 63928, 77104, 79910, 82792, 96380, 103490, 127856, 154208, 159820, 165584, 192760, 206980, 255712, 308416, 319640, 331168, 385520, 413960, 511424, 631289, 639280, 662336, 771040, 827920, 1262578, 1278560, 1542080, 1655840, 2525156, 2557120, 3156445, 3311680, 5050312, 6312890, 10100624, 12625780, 20201248, 25251560, 40402496, 50503120, 101006240, 202012480]

約数ペア:

[(1, 202012480), (2, 101006240), (4, 50503120), (5, 40402496), (8, 25251560), (10, 20201248), (16, 12625780), (20, 10100624), (32, 6312890), (40, 5050312), (61, 3311680), (64, 3156445), (79, 2557120), (80, 2525156), (122, 1655840), (131, 1542080), (158, 1278560), (160, 1262578), (244, 827920), (262, 771040), (305, 662336), (316, 639280), (320, 631289), (395, 511424), (488, 413960), (524, 385520), (610, 331168), (632, 319640), (655, 308416), (790, 255712), (976, 206980), (1048, 192760), (1220, 165584), (1264, 159820), (1310, 154208), (1580, 127856), (1952, 103490), (2096, 96380), (2440, 82792), (2528, 79910), (2620, 77104), (3160, 63928), (3904, 51745), (4192, 48190), (4819, 41920), (4880, 41396), (5056, 39955), (5240, 38552), (6320, 31964), (7991, 25280), (8384, 24095), (9638, 20960), (9760, 20698), (10349, 19520), (10480, 19276), (12640, 15982)]