181918380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1508

約数の個数: 144

約数和(自身を含む): 606735360

約数和(自身を除く): 424816980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 49, 60, 70, 84, 86, 98, 105, 129, 140, 147, 172, 196, 210, 215, 245, 258, 294, 301, 420, 430, 490, 516, 588, 602, 645, 735, 860, 903, 980, 1204, 1290, 1439, 1470, 1505, 1806, 2107, 2580, 2878, 2940, 3010, 3612, 4214, 4317, 4515, 5756, 6020, 6321, 7195, 8428, 8634, 9030, 10073, 10535, 12642, 14390, 17268, 18060, 20146, 21070, 21585, 25284, 28780, 30219, 31605, 40292, 42140, 43170, 50365, 60438, 61877, 63210, 70511, 86340, 100730, 120876, 123754, 126420, 141022, 151095, 185631, 201460, 211533, 247508, 282044, 302190, 309385, 352555, 371262, 423066, 433139, 604380, 618770, 705110, 742524, 846132, 866278, 928155, 1057665, 1237540, 1299417, 1410220, 1732556, 1856310, 2115330, 2165695, 2598834, 3031973, 3712620, 4230660, 4331390, 5197668, 6063946, 6497085, 8662780, 9095919, 12127892, 12994170, 15159865, 18191838, 25988340, 30319730, 36383676, 45479595, 60639460, 90959190, 181918380]

約数ペア:

[(1, 181918380), (2, 90959190), (3, 60639460), (4, 45479595), (5, 36383676), (6, 30319730), (7, 25988340), (10, 18191838), (12, 15159865), (14, 12994170), (15, 12127892), (20, 9095919), (21, 8662780), (28, 6497085), (30, 6063946), (35, 5197668), (42, 4331390), (43, 4230660), (49, 3712620), (60, 3031973), (70, 2598834), (84, 2165695), (86, 2115330), (98, 1856310), (105, 1732556), (129, 1410220), (140, 1299417), (147, 1237540), (172, 1057665), (196, 928155), (210, 866278), (215, 846132), (245, 742524), (258, 705110), (294, 618770), (301, 604380), (420, 433139), (430, 423066), (490, 371262), (516, 352555), (588, 309385), (602, 302190), (645, 282044), (735, 247508), (860, 211533), (903, 201460), (980, 185631), (1204, 151095), (1290, 141022), (1439, 126420), (1470, 123754), (1505, 120876), (1806, 100730), (2107, 86340), (2580, 70511), (2878, 63210), (2940, 61877), (3010, 60438), (3612, 50365), (4214, 43170), (4317, 42140), (4515, 40292), (5756, 31605), (6020, 30219), (6321, 28780), (7195, 25284), (8428, 21585), (8634, 21070), (9030, 20146), (10073, 18060), (10535, 17268), (12642, 14390)]