28749370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 58988160

約数和(自身を除く): 30238790

約数列:

[1, 2, 5, 10, 13, 26, 37, 43, 65, 74, 86, 130, 139, 185, 215, 278, 370, 430, 481, 559, 695, 962, 1118, 1390, 1591, 1807, 2405, 2795, 3182, 3614, 4810, 5143, 5590, 5977, 7955, 9035, 10286, 11954, 15910, 18070, 20683, 25715, 29885, 41366, 51430, 59770, 66859, 77701, 103415, 133718, 155402, 206830, 221149, 334295, 388505, 442298, 668590, 777010, 1105745, 2211490, 2874937, 5749874, 14374685, 28749370]

約数ペア:

[(1, 28749370), (2, 14374685), (5, 5749874), (10, 2874937), (13, 2211490), (26, 1105745), (37, 777010), (43, 668590), (65, 442298), (74, 388505), (86, 334295), (130, 221149), (139, 206830), (185, 155402), (215, 133718), (278, 103415), (370, 77701), (430, 66859), (481, 59770), (559, 51430), (695, 41366), (962, 29885), (1118, 25715), (1390, 20683), (1591, 18070), (1807, 15910), (2405, 11954), (2795, 10286), (3182, 9035), (3614, 7955), (4810, 5977), (5143, 5590)]