251118080

素因数分解:

$2^9\times 5^1\times {\mathrm{233}}^1\times {\mathrm{421}}^1$

素因数の和:677

約数の個数: 80

約数和(自身を含む): 606115224

約数和(自身を除く): 354997144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 233, 256, 320, 421, 466, 512, 640, 842, 932, 1165, 1280, 1684, 1864, 2105, 2330, 2560, 3368, 3728, 4210, 4660, 6736, 7456, 8420, 9320, 13472, 14912, 16840, 18640, 26944, 29824, 33680, 37280, 53888, 59648, 67360, 74560, 98093, 107776, 119296, 134720, 149120, 196186, 215552, 269440, 298240, 392372, 490465, 538880, 596480, 784744, 980930, 1077760, 1569488, 1961860, 3138976, 3923720, 6277952, 7847440, 12555904, 15694880, 25111808, 31389760, 50223616, 62779520, 125559040, 251118080]

約数ペア:

[(1, 251118080), (2, 125559040), (4, 62779520), (5, 50223616), (8, 31389760), (10, 25111808), (16, 15694880), (20, 12555904), (32, 7847440), (40, 6277952), (64, 3923720), (80, 3138976), (128, 1961860), (160, 1569488), (233, 1077760), (256, 980930), (320, 784744), (421, 596480), (466, 538880), (512, 490465), (640, 392372), (842, 298240), (932, 269440), (1165, 215552), (1280, 196186), (1684, 149120), (1864, 134720), (2105, 119296), (2330, 107776), (2560, 98093), (3368, 74560), (3728, 67360), (4210, 59648), (4660, 53888), (6736, 37280), (7456, 33680), (8420, 29824), (9320, 26944), (13472, 18640), (14912, 16840)]