31273020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1997}}^1$

素因数の和:2044

約数の個数: 96

約数和(自身を含む): 100699200

約数和(自身を除く): 69426180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 87, 90, 108, 116, 135, 145, 174, 180, 261, 270, 290, 348, 435, 522, 540, 580, 783, 870, 1044, 1305, 1566, 1740, 1997, 2610, 3132, 3915, 3994, 5220, 5991, 7830, 7988, 9985, 11982, 15660, 17973, 19970, 23964, 29955, 35946, 39940, 53919, 57913, 59910, 71892, 89865, 107838, 115826, 119820, 173739, 179730, 215676, 231652, 269595, 289565, 347478, 359460, 521217, 539190, 579130, 694956, 868695, 1042434, 1078380, 1158260, 1563651, 1737390, 2084868, 2606085, 3127302, 3474780, 5212170, 6254604, 7818255, 10424340, 15636510, 31273020]

約数ペア:

[(1, 31273020), (2, 15636510), (3, 10424340), (4, 7818255), (5, 6254604), (6, 5212170), (9, 3474780), (10, 3127302), (12, 2606085), (15, 2084868), (18, 1737390), (20, 1563651), (27, 1158260), (29, 1078380), (30, 1042434), (36, 868695), (45, 694956), (54, 579130), (58, 539190), (60, 521217), (87, 359460), (90, 347478), (108, 289565), (116, 269595), (135, 231652), (145, 215676), (174, 179730), (180, 173739), (261, 119820), (270, 115826), (290, 107838), (348, 89865), (435, 71892), (522, 59910), (540, 57913), (580, 53919), (783, 39940), (870, 35946), (1044, 29955), (1305, 23964), (1566, 19970), (1740, 17973), (1997, 15660), (2610, 11982), (3132, 9985), (3915, 7988), (3994, 7830), (5220, 5991)]