80937920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1571}}^1$

素因数の和:1618

約数の個数: 112

約数和(自身を含む): 229989888

約数和(自身を除く): 149051968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 644, 736, 805, 920, 1120, 1288, 1472, 1571, 1610, 1840, 2240, 2576, 3142, 3220, 3680, 5152, 6284, 6440, 7360, 7855, 10304, 10997, 12568, 12880, 15710, 21994, 25136, 25760, 31420, 36133, 43988, 50272, 51520, 54985, 62840, 72266, 87976, 100544, 109970, 125680, 144532, 175952, 180665, 219940, 251360, 252931, 289064, 351904, 361330, 439880, 502720, 505862, 578128, 703808, 722660, 879760, 1011724, 1156256, 1264655, 1445320, 1759520, 2023448, 2312512, 2529310, 2890640, 3519040, 4046896, 5058620, 5781280, 8093792, 10117240, 11562560, 16187584, 20234480, 40468960, 80937920]

約数ペア:

[(1, 80937920), (2, 40468960), (4, 20234480), (5, 16187584), (7, 11562560), (8, 10117240), (10, 8093792), (14, 5781280), (16, 5058620), (20, 4046896), (23, 3519040), (28, 2890640), (32, 2529310), (35, 2312512), (40, 2023448), (46, 1759520), (56, 1445320), (64, 1264655), (70, 1156256), (80, 1011724), (92, 879760), (112, 722660), (115, 703808), (140, 578128), (160, 505862), (161, 502720), (184, 439880), (224, 361330), (230, 351904), (280, 289064), (320, 252931), (322, 251360), (368, 219940), (448, 180665), (460, 175952), (560, 144532), (644, 125680), (736, 109970), (805, 100544), (920, 87976), (1120, 72266), (1288, 62840), (1472, 54985), (1571, 51520), (1610, 50272), (1840, 43988), (2240, 36133), (2576, 31420), (3142, 25760), (3220, 25136), (3680, 21994), (5152, 15710), (6284, 12880), (6440, 12568), (7360, 10997), (7855, 10304)]