81385020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5197}}^1$

素因数の和:5244

約数の個数: 96

約数和(自身を含む): 261979200

約数和(自身を除く): 180594180

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, 2610, 3132, 3915, 5197, 5220, 7830, 10394, 15591, 15660, 20788, 25985, 31182, 46773, 51970, 62364, 77955, 93546, 103940, 140319, 150713, 155910, 187092, 233865, 280638, 301426, 311820, 452139, 467730, 561276, 602852, 701595, 753565, 904278, 935460, 1356417, 1403190, 1507130, 1808556, 2260695, 2712834, 2806380, 3014260, 4069251, 4521390, 5425668, 6782085, 8138502, 9042780, 13564170, 16277004, 20346255, 27128340, 40692510, 81385020]

約数ペア:

[(1, 81385020), (2, 40692510), (3, 27128340), (4, 20346255), (5, 16277004), (6, 13564170), (9, 9042780), (10, 8138502), (12, 6782085), (15, 5425668), (18, 4521390), (20, 4069251), (27, 3014260), (29, 2806380), (30, 2712834), (36, 2260695), (45, 1808556), (54, 1507130), (58, 1403190), (60, 1356417), (87, 935460), (90, 904278), (108, 753565), (116, 701595), (135, 602852), (145, 561276), (174, 467730), (180, 452139), (261, 311820), (270, 301426), (290, 280638), (348, 233865), (435, 187092), (522, 155910), (540, 150713), (580, 140319), (783, 103940), (870, 93546), (1044, 77955), (1305, 62364), (1566, 51970), (1740, 46773), (2610, 31182), (3132, 25985), (3915, 20788), (5197, 15660), (5220, 15591), (7830, 10394)]