645599892

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{647}}^1\times {\mathrm{1697}}^1$

素因数の和:2365

約数の個数: 72

約数和(自身を含む): 1756085184

約数和(自身を除く): 1110485292

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 647, 1294, 1697, 1941, 2588, 3394, 3882, 4529, 5091, 6788, 7764, 9058, 10182, 11879, 13587, 18116, 20364, 23758, 27174, 31703, 35637, 47516, 54348, 63406, 71274, 83153, 95109, 126812, 142548, 166306, 190218, 249459, 332612, 380436, 498918, 997836, 1097959, 2195918, 3293877, 4391836, 6587754, 7685713, 13175508, 15371426, 23057139, 30742852, 46114278, 53799991, 92228556, 107599982, 161399973, 215199964, 322799946, 645599892]

約数ペア:

[(1, 645599892), (2, 322799946), (3, 215199964), (4, 161399973), (6, 107599982), (7, 92228556), (12, 53799991), (14, 46114278), (21, 30742852), (28, 23057139), (42, 15371426), (49, 13175508), (84, 7685713), (98, 6587754), (147, 4391836), (196, 3293877), (294, 2195918), (588, 1097959), (647, 997836), (1294, 498918), (1697, 380436), (1941, 332612), (2588, 249459), (3394, 190218), (3882, 166306), (4529, 142548), (5091, 126812), (6788, 95109), (7764, 83153), (9058, 71274), (10182, 63406), (11879, 54348), (13587, 47516), (18116, 35637), (20364, 31703), (23758, 27174)]