17939502040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1693}}^1\times {\mathrm{2731}}^1$

素因数の和:4532

約数の個数: 64

約数和(自身を含む): 40819030560

約数和(自身を除く): 22879528520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1693, 1940, 2731, 3386, 3880, 5462, 6772, 8465, 10924, 13544, 13655, 16930, 21848, 27310, 33860, 54620, 67720, 109240, 164221, 264907, 328442, 529814, 656884, 821105, 1059628, 1313768, 1324535, 1642210, 2119256, 2649070, 3284420, 4623583, 5298140, 6568840, 9247166, 10596280, 18494332, 23117915, 36988664, 46235830, 92471660, 184943320, 448487551, 896975102, 1793950204, 2242437755, 3587900408, 4484875510, 8969751020, 17939502040]

約数ペア:

[(1, 17939502040), (2, 8969751020), (4, 4484875510), (5, 3587900408), (8, 2242437755), (10, 1793950204), (20, 896975102), (40, 448487551), (97, 184943320), (194, 92471660), (388, 46235830), (485, 36988664), (776, 23117915), (970, 18494332), (1693, 10596280), (1940, 9247166), (2731, 6568840), (3386, 5298140), (3880, 4623583), (5462, 3284420), (6772, 2649070), (8465, 2119256), (10924, 1642210), (13544, 1324535), (13655, 1313768), (16930, 1059628), (21848, 821105), (27310, 656884), (33860, 529814), (54620, 328442), (67720, 264907), (109240, 164221)]