78111320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8999}}^1$

素因数の和:9048

約数の個数: 64

約数和(自身を含む): 207360000

約数和(自身を除く): 129248680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 8999, 17998, 35996, 44995, 62993, 71992, 89990, 125986, 179980, 251972, 278969, 314965, 359960, 503944, 557938, 629930, 1115876, 1259860, 1394845, 1952783, 2231752, 2519720, 2789690, 3905566, 5579380, 7811132, 9763915, 11158760, 15622264, 19527830, 39055660, 78111320]

約数ペア:

[(1, 78111320), (2, 39055660), (4, 19527830), (5, 15622264), (7, 11158760), (8, 9763915), (10, 7811132), (14, 5579380), (20, 3905566), (28, 2789690), (31, 2519720), (35, 2231752), (40, 1952783), (56, 1394845), (62, 1259860), (70, 1115876), (124, 629930), (140, 557938), (155, 503944), (217, 359960), (248, 314965), (280, 278969), (310, 251972), (434, 179980), (620, 125986), (868, 89990), (1085, 71992), (1240, 62993), (1736, 44995), (2170, 35996), (4340, 17998), (8680, 8999)]