81879420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1423}}^1$

素因数の和:1579

約数の個数: 96

約数和(自身を含む): 264112128

約数和(自身を除く): 182232708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 137, 140, 210, 274, 411, 420, 548, 685, 822, 959, 1370, 1423, 1644, 1918, 2055, 2740, 2846, 2877, 3836, 4110, 4269, 4795, 5692, 5754, 7115, 8220, 8538, 9590, 9961, 11508, 14230, 14385, 17076, 19180, 19922, 21345, 28460, 28770, 29883, 39844, 42690, 49805, 57540, 59766, 85380, 99610, 119532, 149415, 194951, 199220, 298830, 389902, 584853, 597660, 779804, 974755, 1169706, 1364657, 1949510, 2339412, 2729314, 2924265, 3899020, 4093971, 5458628, 5848530, 6823285, 8187942, 11697060, 13646570, 16375884, 20469855, 27293140, 40939710, 81879420]

約数ペア:

[(1, 81879420), (2, 40939710), (3, 27293140), (4, 20469855), (5, 16375884), (6, 13646570), (7, 11697060), (10, 8187942), (12, 6823285), (14, 5848530), (15, 5458628), (20, 4093971), (21, 3899020), (28, 2924265), (30, 2729314), (35, 2339412), (42, 1949510), (60, 1364657), (70, 1169706), (84, 974755), (105, 779804), (137, 597660), (140, 584853), (210, 389902), (274, 298830), (411, 199220), (420, 194951), (548, 149415), (685, 119532), (822, 99610), (959, 85380), (1370, 59766), (1423, 57540), (1644, 49805), (1918, 42690), (2055, 39844), (2740, 29883), (2846, 28770), (2877, 28460), (3836, 21345), (4110, 19922), (4269, 19180), (4795, 17076), (5692, 14385), (5754, 14230), (7115, 11508), (8220, 9961), (8538, 9590)]