1288967540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{77369}}^1$

素因数の和:77409

約数の個数: 72

約数和(自身を含む): 3334028040

約数和(自身を除く): 2045060500

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 49, 68, 70, 85, 98, 119, 140, 170, 196, 238, 245, 340, 476, 490, 595, 833, 980, 1190, 1666, 2380, 3332, 4165, 8330, 16660, 77369, 154738, 309476, 386845, 541583, 773690, 1083166, 1315273, 1547380, 2166332, 2630546, 2707915, 3791081, 5261092, 5415830, 6576365, 7582162, 9206911, 10831660, 13152730, 15164324, 18413822, 18955405, 26305460, 36827644, 37910810, 46034555, 64448377, 75821620, 92069110, 128896754, 184138220, 257793508, 322241885, 644483770, 1288967540]

約数ペア:

[(1, 1288967540), (2, 644483770), (4, 322241885), (5, 257793508), (7, 184138220), (10, 128896754), (14, 92069110), (17, 75821620), (20, 64448377), (28, 46034555), (34, 37910810), (35, 36827644), (49, 26305460), (68, 18955405), (70, 18413822), (85, 15164324), (98, 13152730), (119, 10831660), (140, 9206911), (170, 7582162), (196, 6576365), (238, 5415830), (245, 5261092), (340, 3791081), (476, 2707915), (490, 2630546), (595, 2166332), (833, 1547380), (980, 1315273), (1190, 1083166), (1666, 773690), (2380, 541583), (3332, 386845), (4165, 309476), (8330, 154738), (16660, 77369)]