15138887540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{8741}}^1$

素因数の和:8985

約数の個数: 96

約数和(自身を含む): 37010131200

約数和(自身を除く): 21871243660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 139, 140, 178, 278, 356, 445, 556, 623, 695, 890, 973, 1246, 1390, 1780, 1946, 2492, 2780, 3115, 3892, 4865, 6230, 8741, 9730, 12371, 12460, 17482, 19460, 24742, 34964, 43705, 49484, 61187, 61855, 86597, 87410, 122374, 123710, 173194, 174820, 244748, 247420, 305935, 346388, 432985, 611870, 777949, 865970, 1214999, 1223740, 1555898, 1731940, 2429998, 3111796, 3889745, 4859996, 5445643, 6074995, 7779490, 8504993, 10891286, 12149990, 15558980, 17009986, 21782572, 24299980, 27228215, 34019972, 42524965, 54456430, 85049930, 108134911, 108912860, 170099860, 216269822, 432539644, 540674555, 756944377, 1081349110, 1513888754, 2162698220, 3027777508, 3784721885, 7569443770, 15138887540]

約数ペア:

[(1, 15138887540), (2, 7569443770), (4, 3784721885), (5, 3027777508), (7, 2162698220), (10, 1513888754), (14, 1081349110), (20, 756944377), (28, 540674555), (35, 432539644), (70, 216269822), (89, 170099860), (139, 108912860), (140, 108134911), (178, 85049930), (278, 54456430), (356, 42524965), (445, 34019972), (556, 27228215), (623, 24299980), (695, 21782572), (890, 17009986), (973, 15558980), (1246, 12149990), (1390, 10891286), (1780, 8504993), (1946, 7779490), (2492, 6074995), (2780, 5445643), (3115, 4859996), (3892, 3889745), (4865, 3111796), (6230, 2429998), (8741, 1731940), (9730, 1555898), (12371, 1223740), (12460, 1214999), (17482, 865970), (19460, 777949), (24742, 611870), (34964, 432985), (43705, 346388), (49484, 305935), (61187, 247420), (61855, 244748), (86597, 174820), (87410, 173194), (122374, 123710)]