81732120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 256573440

約数和(自身を除く): 174841320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 127, 155, 173, 186, 248, 254, 310, 346, 372, 381, 465, 508, 519, 620, 635, 692, 744, 762, 865, 930, 1016, 1038, 1240, 1270, 1384, 1524, 1730, 1860, 1905, 2076, 2540, 2595, 3048, 3460, 3720, 3810, 3937, 4152, 5080, 5190, 5363, 6920, 7620, 7874, 10380, 10726, 11811, 15240, 15748, 16089, 19685, 20760, 21452, 21971, 23622, 26815, 31496, 32178, 39370, 42904, 43942, 47244, 53630, 59055, 64356, 65913, 78740, 80445, 87884, 94488, 107260, 109855, 118110, 128712, 131826, 157480, 160890, 175768, 214520, 219710, 236220, 263652, 321780, 329565, 439420, 472440, 527304, 643560, 659130, 681101, 878840, 1318260, 1362202, 2043303, 2636520, 2724404, 3405505, 4086606, 5448808, 6811010, 8173212, 10216515, 13622020, 16346424, 20433030, 27244040, 40866060, 81732120]

約数ペア:

[(1, 81732120), (2, 40866060), (3, 27244040), (4, 20433030), (5, 16346424), (6, 13622020), (8, 10216515), (10, 8173212), (12, 6811010), (15, 5448808), (20, 4086606), (24, 3405505), (30, 2724404), (31, 2636520), (40, 2043303), (60, 1362202), (62, 1318260), (93, 878840), (120, 681101), (124, 659130), (127, 643560), (155, 527304), (173, 472440), (186, 439420), (248, 329565), (254, 321780), (310, 263652), (346, 236220), (372, 219710), (381, 214520), (465, 175768), (508, 160890), (519, 157480), (620, 131826), (635, 128712), (692, 118110), (744, 109855), (762, 107260), (865, 94488), (930, 87884), (1016, 80445), (1038, 78740), (1240, 65913), (1270, 64356), (1384, 59055), (1524, 53630), (1730, 47244), (1860, 43942), (1905, 42904), (2076, 39370), (2540, 32178), (2595, 31496), (3048, 26815), (3460, 23622), (3720, 21971), (3810, 21452), (3937, 20760), (4152, 19685), (5080, 16089), (5190, 15748), (5363, 15240), (6920, 11811), (7620, 10726), (7874, 10380)]