681937354

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1\times {\mathrm{271}}^1$

素因数の和:503

約数の個数: 64

約数和(自身を含む): 1266693120

約数和(自身を除く): 584755766

約数列:

[1, 2, 7, 14, 17, 34, 97, 109, 119, 194, 218, 238, 271, 542, 679, 763, 1358, 1526, 1649, 1853, 1897, 3298, 3706, 3794, 4607, 9214, 10573, 11543, 12971, 21146, 23086, 25942, 26287, 29539, 32249, 52574, 59078, 64498, 74011, 148022, 179741, 184009, 206773, 359482, 368018, 413546, 446879, 502163, 893758, 1004326, 1258187, 2516374, 2865283, 3128153, 3515141, 5730566, 6256306, 7030282, 20056981, 40113962, 48709811, 97419622, 340968677, 681937354]

約数ペア:

[(1, 681937354), (2, 340968677), (7, 97419622), (14, 48709811), (17, 40113962), (34, 20056981), (97, 7030282), (109, 6256306), (119, 5730566), (194, 3515141), (218, 3128153), (238, 2865283), (271, 2516374), (542, 1258187), (679, 1004326), (763, 893758), (1358, 502163), (1526, 446879), (1649, 413546), (1853, 368018), (1897, 359482), (3298, 206773), (3706, 184009), (3794, 179741), (4607, 148022), (9214, 74011), (10573, 64498), (11543, 59078), (12971, 52574), (21146, 32249), (23086, 29539), (25942, 26287)]