16768780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:335

約数の個数: 72

約数和(自身を含む): 41713056

約数和(自身を除く): 24944276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 241, 245, 284, 355, 482, 490, 497, 710, 964, 980, 994, 1205, 1420, 1687, 1988, 2410, 2485, 3374, 3479, 4820, 4970, 6748, 6958, 8435, 9940, 11809, 13916, 16870, 17111, 17395, 23618, 33740, 34222, 34790, 47236, 59045, 68444, 69580, 85555, 118090, 119777, 171110, 236180, 239554, 342220, 479108, 598885, 838439, 1197770, 1676878, 2395540, 3353756, 4192195, 8384390, 16768780]

約数ペア:

[(1, 16768780), (2, 8384390), (4, 4192195), (5, 3353756), (7, 2395540), (10, 1676878), (14, 1197770), (20, 838439), (28, 598885), (35, 479108), (49, 342220), (70, 239554), (71, 236180), (98, 171110), (140, 119777), (142, 118090), (196, 85555), (241, 69580), (245, 68444), (284, 59045), (355, 47236), (482, 34790), (490, 34222), (497, 33740), (710, 23618), (964, 17395), (980, 17111), (994, 16870), (1205, 13916), (1420, 11809), (1687, 9940), (1988, 8435), (2410, 6958), (2485, 6748), (3374, 4970), (3479, 4820)]