1878506980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{1409}}^1$

素因数の和:1621

約数の個数: 96

約数和(自身を含む): 4604947200

約数和(自身を除く): 2726440220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 107, 140, 178, 214, 356, 428, 445, 535, 623, 749, 890, 1070, 1246, 1409, 1498, 1780, 2140, 2492, 2818, 2996, 3115, 3745, 5636, 6230, 7045, 7490, 9523, 9863, 12460, 14090, 14980, 19046, 19726, 28180, 38092, 39452, 47615, 49315, 66661, 95230, 98630, 125401, 133322, 150763, 190460, 197260, 250802, 266644, 301526, 333305, 501604, 603052, 627005, 666610, 753815, 877807, 1055341, 1254010, 1333220, 1507630, 1755614, 2110682, 2508020, 3015260, 3511228, 4221364, 4389035, 5276705, 8778070, 10553410, 13417907, 17556140, 21106820, 26835814, 53671628, 67089535, 93925349, 134179070, 187850698, 268358140, 375701396, 469626745, 939253490, 1878506980]

約数ペア:

[(1, 1878506980), (2, 939253490), (4, 469626745), (5, 375701396), (7, 268358140), (10, 187850698), (14, 134179070), (20, 93925349), (28, 67089535), (35, 53671628), (70, 26835814), (89, 21106820), (107, 17556140), (140, 13417907), (178, 10553410), (214, 8778070), (356, 5276705), (428, 4389035), (445, 4221364), (535, 3511228), (623, 3015260), (749, 2508020), (890, 2110682), (1070, 1755614), (1246, 1507630), (1409, 1333220), (1498, 1254010), (1780, 1055341), (2140, 877807), (2492, 753815), (2818, 666610), (2996, 627005), (3115, 603052), (3745, 501604), (5636, 333305), (6230, 301526), (7045, 266644), (7490, 250802), (9523, 197260), (9863, 190460), (12460, 150763), (14090, 133322), (14980, 125401), (19046, 98630), (19726, 95230), (28180, 66661), (38092, 49315), (39452, 47615)]