259740160

素因数分解:

$2^9\times 5^1\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:685

約数の個数: 80

約数和(自身を含む): 626837112

約数和(自身を除く): 367096952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 241, 256, 320, 421, 482, 512, 640, 842, 964, 1205, 1280, 1684, 1928, 2105, 2410, 2560, 3368, 3856, 4210, 4820, 6736, 7712, 8420, 9640, 13472, 15424, 16840, 19280, 26944, 30848, 33680, 38560, 53888, 61696, 67360, 77120, 101461, 107776, 123392, 134720, 154240, 202922, 215552, 269440, 308480, 405844, 507305, 538880, 616960, 811688, 1014610, 1077760, 1623376, 2029220, 3246752, 4058440, 6493504, 8116880, 12987008, 16233760, 25974016, 32467520, 51948032, 64935040, 129870080, 259740160]

約数ペア:

[(1, 259740160), (2, 129870080), (4, 64935040), (5, 51948032), (8, 32467520), (10, 25974016), (16, 16233760), (20, 12987008), (32, 8116880), (40, 6493504), (64, 4058440), (80, 3246752), (128, 2029220), (160, 1623376), (241, 1077760), (256, 1014610), (320, 811688), (421, 616960), (482, 538880), (512, 507305), (640, 405844), (842, 308480), (964, 269440), (1205, 215552), (1280, 202922), (1684, 154240), (1928, 134720), (2105, 123392), (2410, 107776), (2560, 101461), (3368, 77120), (3856, 67360), (4210, 61696), (4820, 53888), (6736, 38560), (7712, 33680), (8420, 30848), (9640, 26944), (13472, 19280), (15424, 16840)]