18996510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 49900032

約数和(自身を除く): 30903522

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 67, 78, 130, 134, 195, 201, 335, 390, 402, 670, 727, 871, 1005, 1454, 1742, 2010, 2181, 2613, 3635, 4355, 4362, 5226, 7270, 8710, 9451, 10905, 13065, 18902, 21810, 26130, 28353, 47255, 48709, 56706, 94510, 97418, 141765, 146127, 243545, 283530, 292254, 487090, 633217, 730635, 1266434, 1461270, 1899651, 3166085, 3799302, 6332170, 9498255, 18996510]

約数ペア:

[(1, 18996510), (2, 9498255), (3, 6332170), (5, 3799302), (6, 3166085), (10, 1899651), (13, 1461270), (15, 1266434), (26, 730635), (30, 633217), (39, 487090), (65, 292254), (67, 283530), (78, 243545), (130, 146127), (134, 141765), (195, 97418), (201, 94510), (335, 56706), (390, 48709), (402, 47255), (670, 28353), (727, 26130), (871, 21810), (1005, 18902), (1454, 13065), (1742, 10905), (2010, 9451), (2181, 8710), (2613, 7270), (3635, 5226), (4355, 4362)]