66348517820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{321799}}^1$

素因数の和:321895

約数の個数: 72

約数和(自身を含む): 153347997600

約数和(自身を除く): 86999479780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 169, 244, 260, 305, 338, 610, 676, 793, 845, 1220, 1586, 1690, 3172, 3380, 3965, 7930, 10309, 15860, 20618, 41236, 51545, 103090, 206180, 321799, 643598, 1287196, 1608995, 3217990, 4183387, 6435980, 8366774, 16733548, 19629739, 20916935, 39259478, 41833870, 54384031, 78518956, 83667740, 98148695, 108768062, 196297390, 217536124, 255186607, 271920155, 392594780, 510373214, 543840310, 1020746428, 1087680620, 1275933035, 2551866070, 3317425891, 5103732140, 6634851782, 13269703564, 16587129455, 33174258910, 66348517820]

約数ペア:

[(1, 66348517820), (2, 33174258910), (4, 16587129455), (5, 13269703564), (10, 6634851782), (13, 5103732140), (20, 3317425891), (26, 2551866070), (52, 1275933035), (61, 1087680620), (65, 1020746428), (122, 543840310), (130, 510373214), (169, 392594780), (244, 271920155), (260, 255186607), (305, 217536124), (338, 196297390), (610, 108768062), (676, 98148695), (793, 83667740), (845, 78518956), (1220, 54384031), (1586, 41833870), (1690, 39259478), (3172, 20916935), (3380, 19629739), (3965, 16733548), (7930, 8366774), (10309, 6435980), (15860, 4183387), (20618, 3217990), (41236, 1608995), (51545, 1287196), (103090, 643598), (206180, 321799)]