64740975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2887}}^1$

素因数の和:2936

約数の個数: 48

約数和(自身を含む): 120325632

約数和(自身を除く): 55584657

約数列:

[1, 3, 5, 13, 15, 23, 25, 39, 65, 69, 75, 115, 195, 299, 325, 345, 575, 897, 975, 1495, 1725, 2887, 4485, 7475, 8661, 14435, 22425, 37531, 43305, 66401, 72175, 112593, 187655, 199203, 216525, 332005, 562965, 863213, 938275, 996015, 1660025, 2589639, 2814825, 4316065, 4980075, 12948195, 21580325, 64740975]

約数ペア:

[(1, 64740975), (3, 21580325), (5, 12948195), (13, 4980075), (15, 4316065), (23, 2814825), (25, 2589639), (39, 1660025), (65, 996015), (69, 938275), (75, 863213), (115, 562965), (195, 332005), (299, 216525), (325, 199203), (345, 187655), (575, 112593), (897, 72175), (975, 66401), (1495, 43305), (1725, 37531), (2887, 22425), (4485, 14435), (7475, 8661)]