205316520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{1439}}^1$

素因数の和:1523

約数の個数: 128

約数和(自身を含む): 653184000

約数和(自身を除く): 447867480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 41, 58, 60, 82, 87, 116, 120, 123, 145, 164, 174, 205, 232, 246, 290, 328, 348, 410, 435, 492, 580, 615, 696, 820, 870, 984, 1160, 1189, 1230, 1439, 1640, 1740, 2378, 2460, 2878, 3480, 3567, 4317, 4756, 4920, 5756, 5945, 7134, 7195, 8634, 9512, 11512, 11890, 14268, 14390, 17268, 17835, 21585, 23780, 28536, 28780, 34536, 35670, 41731, 43170, 47560, 57560, 58999, 71340, 83462, 86340, 117998, 125193, 142680, 166924, 172680, 176997, 208655, 235996, 250386, 294995, 333848, 353994, 417310, 471992, 500772, 589990, 625965, 707988, 834620, 884985, 1001544, 1179980, 1251930, 1415976, 1669240, 1710971, 1769970, 2359960, 2503860, 3421942, 3539940, 5007720, 5132913, 6843884, 7079880, 8554855, 10265826, 13687768, 17109710, 20531652, 25664565, 34219420, 41063304, 51329130, 68438840, 102658260, 205316520]

約数ペア:

[(1, 205316520), (2, 102658260), (3, 68438840), (4, 51329130), (5, 41063304), (6, 34219420), (8, 25664565), (10, 20531652), (12, 17109710), (15, 13687768), (20, 10265826), (24, 8554855), (29, 7079880), (30, 6843884), (40, 5132913), (41, 5007720), (58, 3539940), (60, 3421942), (82, 2503860), (87, 2359960), (116, 1769970), (120, 1710971), (123, 1669240), (145, 1415976), (164, 1251930), (174, 1179980), (205, 1001544), (232, 884985), (246, 834620), (290, 707988), (328, 625965), (348, 589990), (410, 500772), (435, 471992), (492, 417310), (580, 353994), (615, 333848), (696, 294995), (820, 250386), (870, 235996), (984, 208655), (1160, 176997), (1189, 172680), (1230, 166924), (1439, 142680), (1640, 125193), (1740, 117998), (2378, 86340), (2460, 83462), (2878, 71340), (3480, 58999), (3567, 57560), (4317, 47560), (4756, 43170), (4920, 41731), (5756, 35670), (5945, 34536), (7134, 28780), (7195, 28536), (8634, 23780), (9512, 21585), (11512, 17835), (11890, 17268), (14268, 14390)]