661118355

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{733}}^1$

素因数の和:898

約数の個数: 80

約数和(自身を含む): 1266132384

約数和(自身を除く): 605014029

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 131, 135, 153, 255, 393, 405, 459, 655, 733, 765, 1179, 1377, 1965, 2199, 2227, 2295, 3537, 3665, 5895, 6597, 6681, 6885, 10611, 10995, 11135, 12461, 17685, 19791, 20043, 32985, 33405, 37383, 53055, 59373, 60129, 62305, 96023, 98955, 100215, 112149, 180387, 186915, 288069, 296865, 300645, 336447, 480115, 560745, 864207, 901935, 1009341, 1440345, 1632391, 1682235, 2592621, 4321035, 4897173, 5046705, 7777863, 8161955, 12963105, 14691519, 24485865, 38889315, 44074557, 73457595, 132223671, 220372785, 661118355]

約数ペア:

[(1, 661118355), (3, 220372785), (5, 132223671), (9, 73457595), (15, 44074557), (17, 38889315), (27, 24485865), (45, 14691519), (51, 12963105), (81, 8161955), (85, 7777863), (131, 5046705), (135, 4897173), (153, 4321035), (255, 2592621), (393, 1682235), (405, 1632391), (459, 1440345), (655, 1009341), (733, 901935), (765, 864207), (1179, 560745), (1377, 480115), (1965, 336447), (2199, 300645), (2227, 296865), (2295, 288069), (3537, 186915), (3665, 180387), (5895, 112149), (6597, 100215), (6681, 98955), (6885, 96023), (10611, 62305), (10995, 60129), (11135, 59373), (12461, 53055), (17685, 37383), (19791, 33405), (20043, 32985)]