64880520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 204042240

約数和(自身を除く): 139161720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 107, 120, 124, 155, 163, 186, 214, 248, 310, 321, 326, 372, 428, 465, 489, 535, 620, 642, 652, 744, 815, 856, 930, 978, 1070, 1240, 1284, 1304, 1605, 1630, 1860, 1956, 2140, 2445, 2568, 3210, 3260, 3317, 3720, 3912, 4280, 4890, 5053, 6420, 6520, 6634, 9780, 9951, 10106, 12840, 13268, 15159, 16585, 17441, 19560, 19902, 20212, 25265, 26536, 30318, 33170, 34882, 39804, 40424, 49755, 50530, 52323, 60636, 66340, 69764, 75795, 79608, 87205, 99510, 101060, 104646, 121272, 132680, 139528, 151590, 174410, 199020, 202120, 209292, 261615, 303180, 348820, 398040, 418584, 523230, 540671, 606360, 697640, 1046460, 1081342, 1622013, 2092920, 2162684, 2703355, 3244026, 4325368, 5406710, 6488052, 8110065, 10813420, 12976104, 16220130, 21626840, 32440260, 64880520]

約数ペア:

[(1, 64880520), (2, 32440260), (3, 21626840), (4, 16220130), (5, 12976104), (6, 10813420), (8, 8110065), (10, 6488052), (12, 5406710), (15, 4325368), (20, 3244026), (24, 2703355), (30, 2162684), (31, 2092920), (40, 1622013), (60, 1081342), (62, 1046460), (93, 697640), (107, 606360), (120, 540671), (124, 523230), (155, 418584), (163, 398040), (186, 348820), (214, 303180), (248, 261615), (310, 209292), (321, 202120), (326, 199020), (372, 174410), (428, 151590), (465, 139528), (489, 132680), (535, 121272), (620, 104646), (642, 101060), (652, 99510), (744, 87205), (815, 79608), (856, 75795), (930, 69764), (978, 66340), (1070, 60636), (1240, 52323), (1284, 50530), (1304, 49755), (1605, 40424), (1630, 39804), (1860, 34882), (1956, 33170), (2140, 30318), (2445, 26536), (2568, 25265), (3210, 20212), (3260, 19902), (3317, 19560), (3720, 17441), (3912, 16585), (4280, 15159), (4890, 13268), (5053, 12840), (6420, 10106), (6520, 9951), (6634, 9780)]