1887198740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1013}}^1\times {\mathrm{1901}}^1$

素因数の和:2937

約数の個数: 72

約数和(自身を含む): 4617135432

約数和(自身を除く): 2729936692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1013, 1901, 2026, 3802, 4052, 5065, 7091, 7604, 9505, 10130, 13307, 14182, 19010, 20260, 26614, 28364, 35455, 38020, 49637, 53228, 66535, 70910, 93149, 99274, 133070, 141820, 186298, 198548, 248185, 266140, 372596, 465745, 496370, 931490, 992740, 1862980, 1925713, 3851426, 7702852, 9628565, 13479991, 19257130, 26959982, 38514260, 53919964, 67399955, 94359937, 134799910, 188719874, 269599820, 377439748, 471799685, 943599370, 1887198740]

約数ペア:

[(1, 1887198740), (2, 943599370), (4, 471799685), (5, 377439748), (7, 269599820), (10, 188719874), (14, 134799910), (20, 94359937), (28, 67399955), (35, 53919964), (49, 38514260), (70, 26959982), (98, 19257130), (140, 13479991), (196, 9628565), (245, 7702852), (490, 3851426), (980, 1925713), (1013, 1862980), (1901, 992740), (2026, 931490), (3802, 496370), (4052, 465745), (5065, 372596), (7091, 266140), (7604, 248185), (9505, 198548), (10130, 186298), (13307, 141820), (14182, 133070), (19010, 99274), (20260, 93149), (26614, 70910), (28364, 66535), (35455, 53228), (38020, 49637)]