861519760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{1117}}^1$

素因数の和:1472

約数の個数: 80

約数和(自身を含む): 2076152832

約数和(自身を除く): 1214633072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 311, 496, 620, 622, 1117, 1240, 1244, 1555, 2234, 2480, 2488, 3110, 4468, 4976, 5585, 6220, 8936, 9641, 11170, 12440, 17872, 19282, 22340, 24880, 34627, 38564, 44680, 48205, 69254, 77128, 89360, 96410, 138508, 154256, 173135, 192820, 277016, 346270, 347387, 385640, 554032, 692540, 694774, 771280, 1385080, 1389548, 1736935, 2770160, 2779096, 3473870, 5558192, 6947740, 10768997, 13895480, 21537994, 27790960, 43075988, 53844985, 86151976, 107689970, 172303952, 215379940, 430759880, 861519760]

約数ペア:

[(1, 861519760), (2, 430759880), (4, 215379940), (5, 172303952), (8, 107689970), (10, 86151976), (16, 53844985), (20, 43075988), (31, 27790960), (40, 21537994), (62, 13895480), (80, 10768997), (124, 6947740), (155, 5558192), (248, 3473870), (310, 2779096), (311, 2770160), (496, 1736935), (620, 1389548), (622, 1385080), (1117, 771280), (1240, 694774), (1244, 692540), (1555, 554032), (2234, 385640), (2480, 347387), (2488, 346270), (3110, 277016), (4468, 192820), (4976, 173135), (5585, 154256), (6220, 138508), (8936, 96410), (9641, 89360), (11170, 77128), (12440, 69254), (17872, 48205), (19282, 44680), (22340, 38564), (24880, 34627)]