129870080

素因数分解:

$2^8\times 5^1\times {\mathrm{241}}^1\times {\mathrm{421}}^1$

素因数の和:683

約数の個数: 72

約数和(自身を含む): 313112184

約数和(自身を除く): 183242104

約数列:

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

約数ペア:

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