20121088

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3023}}^1$

素因数の和:3054

約数の個数: 40

約数和(自身を含む): 43309728

約数和(自身を除く): 23188640

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3023, 3328, 6046, 6656, 12092, 24184, 39299, 48368, 78598, 96736, 157196, 193472, 314392, 386944, 628784, 773888, 1257568, 1547776, 2515136, 5030272, 10060544, 20121088]

約数ペア:

[(1, 20121088), (2, 10060544), (4, 5030272), (8, 2515136), (13, 1547776), (16, 1257568), (26, 773888), (32, 628784), (52, 386944), (64, 314392), (104, 193472), (128, 157196), (208, 96736), (256, 78598), (416, 48368), (512, 39299), (832, 24184), (1664, 12092), (3023, 6656), (3328, 6046)]