243970520

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1\times {\mathrm{277}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 559046880

約数和(自身を除く): 315076360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 227, 277, 388, 454, 485, 554, 776, 908, 970, 1108, 1135, 1385, 1816, 1940, 2216, 2270, 2770, 3880, 4540, 5540, 9080, 11080, 22019, 26869, 44038, 53738, 62879, 88076, 107476, 110095, 125758, 134345, 176152, 214952, 220190, 251516, 268690, 314395, 440380, 503032, 537380, 628790, 880760, 1074760, 1257580, 2515160, 6099263, 12198526, 24397052, 30496315, 48794104, 60992630, 121985260, 243970520]

約数ペア:

[(1, 243970520), (2, 121985260), (4, 60992630), (5, 48794104), (8, 30496315), (10, 24397052), (20, 12198526), (40, 6099263), (97, 2515160), (194, 1257580), (227, 1074760), (277, 880760), (388, 628790), (454, 537380), (485, 503032), (554, 440380), (776, 314395), (908, 268690), (970, 251516), (1108, 220190), (1135, 214952), (1385, 176152), (1816, 134345), (1940, 125758), (2216, 110095), (2270, 107476), (2770, 88076), (3880, 62879), (4540, 53738), (5540, 44038), (9080, 26869), (11080, 22019)]