419500520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{1117}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 971989200

約数和(自身を除く): 552488680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 229, 328, 410, 458, 820, 916, 1117, 1145, 1640, 1832, 2234, 2290, 4468, 4580, 5585, 8936, 9160, 9389, 11170, 18778, 22340, 37556, 44680, 45797, 46945, 75112, 91594, 93890, 183188, 187780, 228985, 255793, 366376, 375560, 457970, 511586, 915940, 1023172, 1278965, 1831880, 2046344, 2557930, 5115860, 10231720, 10487513, 20975026, 41950052, 52437565, 83900104, 104875130, 209750260, 419500520]

約数ペア:

[(1, 419500520), (2, 209750260), (4, 104875130), (5, 83900104), (8, 52437565), (10, 41950052), (20, 20975026), (40, 10487513), (41, 10231720), (82, 5115860), (164, 2557930), (205, 2046344), (229, 1831880), (328, 1278965), (410, 1023172), (458, 915940), (820, 511586), (916, 457970), (1117, 375560), (1145, 366376), (1640, 255793), (1832, 228985), (2234, 187780), (2290, 183188), (4468, 93890), (4580, 91594), (5585, 75112), (8936, 46945), (9160, 45797), (9389, 44680), (11170, 37556), (18778, 22340)]