897789320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{3259}}^1$

素因数の和:3438

約数の個数: 64

約数和(自身を含む): 2070230400

約数和(自身を除く): 1172441080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 97, 142, 194, 284, 355, 388, 485, 568, 710, 776, 970, 1420, 1940, 2840, 3259, 3880, 6518, 6887, 13036, 13774, 16295, 26072, 27548, 32590, 34435, 55096, 65180, 68870, 130360, 137740, 231389, 275480, 316123, 462778, 632246, 925556, 1156945, 1264492, 1580615, 1851112, 2313890, 2528984, 3161230, 4627780, 6322460, 9255560, 12644920, 22444733, 44889466, 89778932, 112223665, 179557864, 224447330, 448894660, 897789320]

約数ペア:

[(1, 897789320), (2, 448894660), (4, 224447330), (5, 179557864), (8, 112223665), (10, 89778932), (20, 44889466), (40, 22444733), (71, 12644920), (97, 9255560), (142, 6322460), (194, 4627780), (284, 3161230), (355, 2528984), (388, 2313890), (485, 1851112), (568, 1580615), (710, 1264492), (776, 1156945), (970, 925556), (1420, 632246), (1940, 462778), (2840, 316123), (3259, 275480), (3880, 231389), (6518, 137740), (6887, 130360), (13036, 68870), (13774, 65180), (16295, 55096), (26072, 34435), (27548, 32590)]