204639880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 128

約数和(自身を含む): 525657600

約数和(自身を除く): 321017720

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 47, 68, 76, 85, 94, 95, 136, 152, 170, 188, 190, 235, 323, 337, 340, 376, 380, 470, 646, 674, 680, 760, 799, 893, 940, 1292, 1348, 1598, 1615, 1685, 1786, 1880, 2584, 2696, 3196, 3230, 3370, 3572, 3995, 4465, 5729, 6392, 6403, 6460, 6740, 7144, 7990, 8930, 11458, 12806, 12920, 13480, 15181, 15839, 15980, 17860, 22916, 25612, 28645, 30362, 31678, 31960, 32015, 35720, 45832, 51224, 57290, 60724, 63356, 64030, 75905, 79195, 108851, 114580, 121448, 126712, 128060, 151810, 158390, 217702, 229160, 256120, 269263, 300941, 303620, 316780, 435404, 538526, 544255, 601882, 607240, 633560, 870808, 1077052, 1088510, 1203764, 1346315, 1504705, 2154104, 2177020, 2407528, 2692630, 3009410, 4354040, 5115997, 5385260, 6018820, 10231994, 10770520, 12037640, 20463988, 25579985, 40927976, 51159970, 102319940, 204639880]

約数ペア:

[(1, 204639880), (2, 102319940), (4, 51159970), (5, 40927976), (8, 25579985), (10, 20463988), (17, 12037640), (19, 10770520), (20, 10231994), (34, 6018820), (38, 5385260), (40, 5115997), (47, 4354040), (68, 3009410), (76, 2692630), (85, 2407528), (94, 2177020), (95, 2154104), (136, 1504705), (152, 1346315), (170, 1203764), (188, 1088510), (190, 1077052), (235, 870808), (323, 633560), (337, 607240), (340, 601882), (376, 544255), (380, 538526), (470, 435404), (646, 316780), (674, 303620), (680, 300941), (760, 269263), (799, 256120), (893, 229160), (940, 217702), (1292, 158390), (1348, 151810), (1598, 128060), (1615, 126712), (1685, 121448), (1786, 114580), (1880, 108851), (2584, 79195), (2696, 75905), (3196, 64030), (3230, 63356), (3370, 60724), (3572, 57290), (3995, 51224), (4465, 45832), (5729, 35720), (6392, 32015), (6403, 31960), (6460, 31678), (6740, 30362), (7144, 28645), (7990, 25612), (8930, 22916), (11458, 17860), (12806, 15980), (12920, 15839), (13480, 15181)]