640457520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{86083}}^1$

素因数の和:86130

約数の個数: 80

約数和(自身を含む): 2049487872

約数和(自身を除く): 1409030352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 155, 186, 240, 248, 310, 372, 465, 496, 620, 744, 930, 1240, 1488, 1860, 2480, 3720, 7440, 86083, 172166, 258249, 344332, 430415, 516498, 688664, 860830, 1032996, 1291245, 1377328, 1721660, 2065992, 2582490, 2668573, 3443320, 4131984, 5164980, 5337146, 6886640, 8005719, 10329960, 10674292, 13342865, 16011438, 20659920, 21348584, 26685730, 32022876, 40028595, 42697168, 53371460, 64045752, 80057190, 106742920, 128091504, 160114380, 213485840, 320228760, 640457520]

約数ペア:

[(1, 640457520), (2, 320228760), (3, 213485840), (4, 160114380), (5, 128091504), (6, 106742920), (8, 80057190), (10, 64045752), (12, 53371460), (15, 42697168), (16, 40028595), (20, 32022876), (24, 26685730), (30, 21348584), (31, 20659920), (40, 16011438), (48, 13342865), (60, 10674292), (62, 10329960), (80, 8005719), (93, 6886640), (120, 5337146), (124, 5164980), (155, 4131984), (186, 3443320), (240, 2668573), (248, 2582490), (310, 2065992), (372, 1721660), (465, 1377328), (496, 1291245), (620, 1032996), (744, 860830), (930, 688664), (1240, 516498), (1488, 430415), (1860, 344332), (2480, 258249), (3720, 172166), (7440, 86083)]