81645030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4259}}^1$

素因数の和:4346

約数の個数: 64

約数和(自身を含む): 220838400

約数和(自身を除く): 139193370

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 71, 90, 135, 142, 213, 270, 355, 426, 639, 710, 1065, 1278, 1917, 2130, 3195, 3834, 4259, 6390, 8518, 9585, 12777, 19170, 21295, 25554, 38331, 42590, 63885, 76662, 114993, 127770, 191655, 229986, 302389, 383310, 574965, 604778, 907167, 1149930, 1511945, 1814334, 2721501, 3023890, 4535835, 5443002, 8164503, 9071670, 13607505, 16329006, 27215010, 40822515, 81645030]

約数ペア:

[(1, 81645030), (2, 40822515), (3, 27215010), (5, 16329006), (6, 13607505), (9, 9071670), (10, 8164503), (15, 5443002), (18, 4535835), (27, 3023890), (30, 2721501), (45, 1814334), (54, 1511945), (71, 1149930), (90, 907167), (135, 604778), (142, 574965), (213, 383310), (270, 302389), (355, 229986), (426, 191655), (639, 127770), (710, 114993), (1065, 76662), (1278, 63885), (1917, 42590), (2130, 38331), (3195, 25554), (3834, 21295), (4259, 19170), (6390, 12777), (8518, 9585)]