643704592

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{293}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 1364256432

約数和(自身を除く): 720551840

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 82, 136, 164, 197, 272, 293, 328, 394, 586, 656, 697, 788, 1172, 1394, 1576, 2344, 2788, 3152, 3349, 4688, 4981, 5576, 6698, 8077, 9962, 11152, 12013, 13396, 16154, 19924, 24026, 26792, 32308, 39848, 48052, 53584, 57721, 64616, 79696, 96104, 115442, 129232, 137309, 192208, 204221, 230884, 274618, 408442, 461768, 549236, 816884, 923536, 981257, 1098472, 1633768, 1962514, 2196944, 2366561, 3267536, 3925028, 4733122, 7850056, 9466244, 15700112, 18932488, 37864976, 40231537, 80463074, 160926148, 321852296, 643704592]

約数ペア:

[(1, 643704592), (2, 321852296), (4, 160926148), (8, 80463074), (16, 40231537), (17, 37864976), (34, 18932488), (41, 15700112), (68, 9466244), (82, 7850056), (136, 4733122), (164, 3925028), (197, 3267536), (272, 2366561), (293, 2196944), (328, 1962514), (394, 1633768), (586, 1098472), (656, 981257), (697, 923536), (788, 816884), (1172, 549236), (1394, 461768), (1576, 408442), (2344, 274618), (2788, 230884), (3152, 204221), (3349, 192208), (4688, 137309), (4981, 129232), (5576, 115442), (6698, 96104), (8077, 79696), (9962, 64616), (11152, 57721), (12013, 53584), (13396, 48052), (16154, 39848), (19924, 32308), (24026, 26792)]