18664640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:154

約数の個数: 112

約数和(自身を含む): 48719232

約数和(自身を除く): 30054592

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 64, 68, 73, 80, 85, 94, 136, 146, 160, 170, 188, 235, 272, 292, 320, 340, 365, 376, 470, 544, 584, 680, 730, 752, 799, 940, 1088, 1168, 1241, 1360, 1460, 1504, 1598, 1880, 2336, 2482, 2720, 2920, 3008, 3196, 3431, 3760, 3995, 4672, 4964, 5440, 5840, 6205, 6392, 6862, 7520, 7990, 9928, 11680, 12410, 12784, 13724, 15040, 15980, 17155, 19856, 23360, 24820, 25568, 27448, 31960, 34310, 39712, 49640, 51136, 54896, 58327, 63920, 68620, 79424, 99280, 109792, 116654, 127840, 137240, 198560, 219584, 233308, 255680, 274480, 291635, 397120, 466616, 548960, 583270, 933232, 1097920, 1166540, 1866464, 2333080, 3732928, 4666160, 9332320, 18664640]

約数ペア:

[(1, 18664640), (2, 9332320), (4, 4666160), (5, 3732928), (8, 2333080), (10, 1866464), (16, 1166540), (17, 1097920), (20, 933232), (32, 583270), (34, 548960), (40, 466616), (47, 397120), (64, 291635), (68, 274480), (73, 255680), (80, 233308), (85, 219584), (94, 198560), (136, 137240), (146, 127840), (160, 116654), (170, 109792), (188, 99280), (235, 79424), (272, 68620), (292, 63920), (320, 58327), (340, 54896), (365, 51136), (376, 49640), (470, 39712), (544, 34310), (584, 31960), (680, 27448), (730, 25568), (752, 24820), (799, 23360), (940, 19856), (1088, 17155), (1168, 15980), (1241, 15040), (1360, 13724), (1460, 12784), (1504, 12410), (1598, 11680), (1880, 9928), (2336, 7990), (2482, 7520), (2720, 6862), (2920, 6392), (3008, 6205), (3196, 5840), (3431, 5440), (3760, 4964), (3995, 4672)]