81895860

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:205

約数の個数: 168

約数和(自身を含む): 266071176

約数和(自身を除く): 184175316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 123, 135, 137, 162, 164, 180, 205, 243, 246, 270, 274, 324, 369, 405, 410, 411, 486, 492, 540, 548, 615, 685, 729, 738, 810, 820, 822, 972, 1107, 1215, 1230, 1233, 1370, 1458, 1476, 1620, 1644, 1845, 2055, 2214, 2430, 2460, 2466, 2740, 2916, 3321, 3645, 3690, 3699, 4110, 4428, 4860, 4932, 5535, 5617, 6165, 6642, 7290, 7380, 7398, 8220, 9963, 11070, 11097, 11234, 12330, 13284, 14580, 14796, 16605, 16851, 18495, 19926, 22140, 22194, 22468, 24660, 28085, 29889, 33210, 33291, 33702, 36990, 39852, 44388, 49815, 50553, 55485, 56170, 59778, 66420, 66582, 67404, 73980, 84255, 99630, 99873, 101106, 110970, 112340, 119556, 133164, 149445, 151659, 166455, 168510, 199260, 199746, 202212, 221940, 252765, 298890, 303318, 332910, 337020, 399492, 454977, 499365, 505530, 597780, 606636, 665820, 758295, 909954, 998730, 1011060, 1364931, 1516590, 1819908, 1997460, 2274885, 2729862, 3033180, 4094793, 4549770, 5459724, 6824655, 8189586, 9099540, 13649310, 16379172, 20473965, 27298620, 40947930, 81895860]

約数ペア:

[(1, 81895860), (2, 40947930), (3, 27298620), (4, 20473965), (5, 16379172), (6, 13649310), (9, 9099540), (10, 8189586), (12, 6824655), (15, 5459724), (18, 4549770), (20, 4094793), (27, 3033180), (30, 2729862), (36, 2274885), (41, 1997460), (45, 1819908), (54, 1516590), (60, 1364931), (81, 1011060), (82, 998730), (90, 909954), (108, 758295), (123, 665820), (135, 606636), (137, 597780), (162, 505530), (164, 499365), (180, 454977), (205, 399492), (243, 337020), (246, 332910), (270, 303318), (274, 298890), (324, 252765), (369, 221940), (405, 202212), (410, 199746), (411, 199260), (486, 168510), (492, 166455), (540, 151659), (548, 149445), (615, 133164), (685, 119556), (729, 112340), (738, 110970), (810, 101106), (820, 99873), (822, 99630), (972, 84255), (1107, 73980), (1215, 67404), (1230, 66582), (1233, 66420), (1370, 59778), (1458, 56170), (1476, 55485), (1620, 50553), (1644, 49815), (1845, 44388), (2055, 39852), (2214, 36990), (2430, 33702), (2460, 33291), (2466, 33210), (2740, 29889), (2916, 28085), (3321, 24660), (3645, 22468), (3690, 22194), (3699, 22140), (4110, 19926), (4428, 18495), (4860, 16851), (4932, 16605), (5535, 14796), (5617, 14580), (6165, 13284), (6642, 12330), (7290, 11234), (7380, 11097), (7398, 11070), (8220, 9963)]