81641912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{227}}^1$

素因数の和:372

約数の個数: 64

約数和(自身を含む): 173024640

約数和(自身を除く): 91382728

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 67, 88, 122, 134, 227, 244, 268, 454, 488, 536, 671, 737, 908, 1342, 1474, 1816, 2497, 2684, 2948, 4087, 4994, 5368, 5896, 8174, 9988, 13847, 15209, 16348, 19976, 27694, 30418, 32696, 44957, 55388, 60836, 89914, 110776, 121672, 152317, 167299, 179828, 304634, 334598, 359656, 609268, 669196, 927749, 1218536, 1338392, 1855498, 3710996, 7421992, 10205239, 20410478, 40820956, 81641912]

約数ペア:

[(1, 81641912), (2, 40820956), (4, 20410478), (8, 10205239), (11, 7421992), (22, 3710996), (44, 1855498), (61, 1338392), (67, 1218536), (88, 927749), (122, 669196), (134, 609268), (227, 359656), (244, 334598), (268, 304634), (454, 179828), (488, 167299), (536, 152317), (671, 121672), (737, 110776), (908, 89914), (1342, 60836), (1474, 55388), (1816, 44957), (2497, 32696), (2684, 30418), (2948, 27694), (4087, 19976), (4994, 16348), (5368, 15209), (5896, 13847), (8174, 9988)]