28128954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{787}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 68990976

約数和(自身を除く): 40862022

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 37, 42, 46, 69, 74, 111, 138, 161, 222, 259, 322, 483, 518, 777, 787, 851, 966, 1554, 1574, 1702, 2361, 2553, 4722, 5106, 5509, 5957, 11018, 11914, 16527, 17871, 18101, 29119, 33054, 35742, 36202, 54303, 58238, 87357, 108606, 126707, 174714, 203833, 253414, 380121, 407666, 611499, 669737, 760242, 1222998, 1339474, 2009211, 4018422, 4688159, 9376318, 14064477, 28128954]

約数ペア:

[(1, 28128954), (2, 14064477), (3, 9376318), (6, 4688159), (7, 4018422), (14, 2009211), (21, 1339474), (23, 1222998), (37, 760242), (42, 669737), (46, 611499), (69, 407666), (74, 380121), (111, 253414), (138, 203833), (161, 174714), (222, 126707), (259, 108606), (322, 87357), (483, 58238), (518, 54303), (777, 36202), (787, 35742), (851, 33054), (966, 29119), (1554, 18101), (1574, 17871), (1702, 16527), (2361, 11914), (2553, 11018), (4722, 5957), (5106, 5509)]