31286520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{491}}^1$

素因数の和:570

約数の個数: 128

約数和(自身を含む): 106272000

約数和(自身を除く): 74985480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 59, 60, 72, 90, 108, 118, 120, 135, 177, 180, 216, 236, 270, 295, 354, 360, 472, 491, 531, 540, 590, 708, 885, 982, 1062, 1080, 1180, 1416, 1473, 1593, 1770, 1964, 2124, 2360, 2455, 2655, 2946, 3186, 3540, 3928, 4248, 4419, 4910, 5310, 5892, 6372, 7080, 7365, 7965, 8838, 9820, 10620, 11784, 12744, 13257, 14730, 15930, 17676, 19640, 21240, 22095, 26514, 28969, 29460, 31860, 35352, 44190, 53028, 57938, 58920, 63720, 66285, 86907, 88380, 106056, 115876, 132570, 144845, 173814, 176760, 231752, 260721, 265140, 289690, 347628, 434535, 521442, 530280, 579380, 695256, 782163, 869070, 1042884, 1158760, 1303605, 1564326, 1738140, 2085768, 2607210, 3128652, 3476280, 3910815, 5214420, 6257304, 7821630, 10428840, 15643260, 31286520]

約数ペア:

[(1, 31286520), (2, 15643260), (3, 10428840), (4, 7821630), (5, 6257304), (6, 5214420), (8, 3910815), (9, 3476280), (10, 3128652), (12, 2607210), (15, 2085768), (18, 1738140), (20, 1564326), (24, 1303605), (27, 1158760), (30, 1042884), (36, 869070), (40, 782163), (45, 695256), (54, 579380), (59, 530280), (60, 521442), (72, 434535), (90, 347628), (108, 289690), (118, 265140), (120, 260721), (135, 231752), (177, 176760), (180, 173814), (216, 144845), (236, 132570), (270, 115876), (295, 106056), (354, 88380), (360, 86907), (472, 66285), (491, 63720), (531, 58920), (540, 57938), (590, 53028), (708, 44190), (885, 35352), (982, 31860), (1062, 29460), (1080, 28969), (1180, 26514), (1416, 22095), (1473, 21240), (1593, 19640), (1770, 17676), (1964, 15930), (2124, 14730), (2360, 13257), (2455, 12744), (2655, 11784), (2946, 10620), (3186, 9820), (3540, 8838), (3928, 7965), (4248, 7365), (4419, 7080), (4910, 6372), (5310, 5892)]