20269340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 56038752

約数和(自身を除く): 35769412

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 37, 43, 49, 52, 65, 70, 74, 86, 91, 98, 130, 140, 148, 172, 182, 185, 196, 215, 245, 259, 260, 301, 364, 370, 430, 455, 481, 490, 518, 559, 602, 637, 740, 860, 910, 962, 980, 1036, 1118, 1204, 1274, 1295, 1505, 1591, 1813, 1820, 1924, 2107, 2236, 2405, 2548, 2590, 2795, 3010, 3182, 3185, 3367, 3626, 3913, 4214, 4810, 5180, 5590, 6020, 6364, 6370, 6734, 7252, 7826, 7955, 8428, 9065, 9620, 10535, 11137, 11180, 12740, 13468, 15652, 15910, 16835, 18130, 19565, 20683, 21070, 22274, 23569, 27391, 31820, 33670, 36260, 39130, 41366, 42140, 44548, 47138, 54782, 55685, 67340, 77959, 78260, 82732, 94276, 103415, 109564, 111370, 117845, 136955, 144781, 155918, 206830, 222740, 235690, 273910, 289562, 311836, 389795, 413660, 471380, 547820, 579124, 723905, 779590, 1013467, 1447810, 1559180, 2026934, 2895620, 4053868, 5067335, 10134670, 20269340]

約数ペア:

[(1, 20269340), (2, 10134670), (4, 5067335), (5, 4053868), (7, 2895620), (10, 2026934), (13, 1559180), (14, 1447810), (20, 1013467), (26, 779590), (28, 723905), (35, 579124), (37, 547820), (43, 471380), (49, 413660), (52, 389795), (65, 311836), (70, 289562), (74, 273910), (86, 235690), (91, 222740), (98, 206830), (130, 155918), (140, 144781), (148, 136955), (172, 117845), (182, 111370), (185, 109564), (196, 103415), (215, 94276), (245, 82732), (259, 78260), (260, 77959), (301, 67340), (364, 55685), (370, 54782), (430, 47138), (455, 44548), (481, 42140), (490, 41366), (518, 39130), (559, 36260), (602, 33670), (637, 31820), (740, 27391), (860, 23569), (910, 22274), (962, 21070), (980, 20683), (1036, 19565), (1118, 18130), (1204, 16835), (1274, 15910), (1295, 15652), (1505, 13468), (1591, 12740), (1813, 11180), (1820, 11137), (1924, 10535), (2107, 9620), (2236, 9065), (2405, 8428), (2548, 7955), (2590, 7826), (2795, 7252), (3010, 6734), (3182, 6370), (3185, 6364), (3367, 6020), (3626, 5590), (3913, 5180), (4214, 4810)]