18378889245

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{1913}}^1$

素因数の和:2123

約数の個数: 96

約数和(自身を含む): 33708939264

約数和(自身を除く): 15330050019

約数列:

[1, 3, 5, 9, 15, 31, 45, 71, 93, 97, 155, 213, 279, 291, 355, 465, 485, 639, 873, 1065, 1395, 1455, 1913, 2201, 3007, 3195, 4365, 5739, 6603, 6887, 9021, 9565, 11005, 15035, 17217, 19809, 20661, 27063, 28695, 33015, 34435, 45105, 59303, 61983, 86085, 99045, 103305, 135315, 135823, 177909, 185561, 213497, 296515, 309915, 407469, 533727, 556683, 640491, 679115, 889545, 927805, 1067485, 1222407, 1670049, 1921473, 2037345, 2668635, 2783415, 3202455, 4210513, 5752391, 6112035, 8350245, 9607365, 12631539, 13174831, 17257173, 21052565, 28761955, 37894617, 39524493, 51771519, 63157695, 65874155, 86285865, 118573479, 189473085, 197622465, 258857595, 408419761, 592867395, 1225259283, 2042098805, 3675777849, 6126296415, 18378889245]

約数ペア:

[(1, 18378889245), (3, 6126296415), (5, 3675777849), (9, 2042098805), (15, 1225259283), (31, 592867395), (45, 408419761), (71, 258857595), (93, 197622465), (97, 189473085), (155, 118573479), (213, 86285865), (279, 65874155), (291, 63157695), (355, 51771519), (465, 39524493), (485, 37894617), (639, 28761955), (873, 21052565), (1065, 17257173), (1395, 13174831), (1455, 12631539), (1913, 9607365), (2201, 8350245), (3007, 6112035), (3195, 5752391), (4365, 4210513), (5739, 3202455), (6603, 2783415), (6887, 2668635), (9021, 2037345), (9565, 1921473), (11005, 1670049), (15035, 1222407), (17217, 1067485), (19809, 927805), (20661, 889545), (27063, 679115), (28695, 640491), (33015, 556683), (34435, 533727), (45105, 407469), (59303, 309915), (61983, 296515), (86085, 213497), (99045, 185561), (103305, 177909), (135315, 135823)]