81262545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1609}}^1$

素因数の和:1674

約数の個数: 64

約数和(自身を含む): 164451840

約数和(自身を除く): 83189295

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 37, 39, 65, 91, 105, 111, 185, 195, 259, 273, 455, 481, 555, 777, 1295, 1365, 1443, 1609, 2405, 3367, 3885, 4827, 7215, 8045, 10101, 11263, 16835, 20917, 24135, 33789, 50505, 56315, 59533, 62751, 104585, 146419, 168945, 178599, 297665, 313755, 416731, 439257, 732095, 773929, 892995, 1250193, 2083655, 2196285, 2321787, 3869645, 5417503, 6250965, 11608935, 16252509, 27087515, 81262545]

約数ペア:

[(1, 81262545), (3, 27087515), (5, 16252509), (7, 11608935), (13, 6250965), (15, 5417503), (21, 3869645), (35, 2321787), (37, 2196285), (39, 2083655), (65, 1250193), (91, 892995), (105, 773929), (111, 732095), (185, 439257), (195, 416731), (259, 313755), (273, 297665), (455, 178599), (481, 168945), (555, 146419), (777, 104585), (1295, 62751), (1365, 59533), (1443, 56315), (1609, 50505), (2405, 33789), (3367, 24135), (3885, 20917), (4827, 16835), (7215, 11263), (8045, 10101)]