19912141408

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1\times {\mathrm{929}}^1$

素因数の和:1440

約数の個数: 96

約数和(自身を含む): 41340166560

約数和(自身を除く): 21428025152

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 74, 86, 148, 172, 296, 344, 421, 592, 688, 842, 929, 1184, 1376, 1591, 1684, 1858, 3182, 3368, 3716, 6364, 6736, 7432, 12728, 13472, 14864, 15577, 18103, 25456, 29728, 31154, 34373, 36206, 39947, 50912, 62308, 68746, 72412, 79894, 124616, 137492, 144824, 159788, 249232, 274984, 289648, 319576, 391109, 498464, 549968, 579296, 639152, 669811, 782218, 1099936, 1278304, 1339622, 1478039, 1564436, 2679244, 2956078, 3128872, 5358488, 5912156, 6257744, 10716976, 11824312, 12515488, 14471033, 16817687, 21433952, 23648624, 28942066, 33635374, 47297248, 57884132, 67270748, 115768264, 134541496, 231536528, 269082992, 463073056, 538165984, 622254419, 1244508838, 2489017676, 4978035352, 9956070704, 19912141408]

約数ペア:

[(1, 19912141408), (2, 9956070704), (4, 4978035352), (8, 2489017676), (16, 1244508838), (32, 622254419), (37, 538165984), (43, 463073056), (74, 269082992), (86, 231536528), (148, 134541496), (172, 115768264), (296, 67270748), (344, 57884132), (421, 47297248), (592, 33635374), (688, 28942066), (842, 23648624), (929, 21433952), (1184, 16817687), (1376, 14471033), (1591, 12515488), (1684, 11824312), (1858, 10716976), (3182, 6257744), (3368, 5912156), (3716, 5358488), (6364, 3128872), (6736, 2956078), (7432, 2679244), (12728, 1564436), (13472, 1478039), (14864, 1339622), (15577, 1278304), (18103, 1099936), (25456, 782218), (29728, 669811), (31154, 639152), (34373, 579296), (36206, 549968), (39947, 498464), (50912, 391109), (62308, 319576), (68746, 289648), (72412, 274984), (79894, 249232), (124616, 159788), (137492, 144824)]