720176996

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{6857}}^1$

素因数の和:6921

約数の個数: 72

約数和(自身を含む): 1634508288

約数和(自身を除く): 914331292

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 121, 124, 154, 217, 242, 308, 341, 434, 484, 682, 847, 868, 1364, 1694, 2387, 3388, 3751, 4774, 6857, 7502, 9548, 13714, 15004, 26257, 27428, 47999, 52514, 75427, 95998, 105028, 150854, 191996, 212567, 301708, 425134, 527989, 829697, 850268, 1055978, 1487969, 1659394, 2111956, 2338237, 2975938, 3318788, 4676474, 5807879, 5951876, 9352948, 11615758, 16367659, 23231516, 25720607, 32735318, 51441214, 65470636, 102882428, 180044249, 360088498, 720176996]

約数ペア:

[(1, 720176996), (2, 360088498), (4, 180044249), (7, 102882428), (11, 65470636), (14, 51441214), (22, 32735318), (28, 25720607), (31, 23231516), (44, 16367659), (62, 11615758), (77, 9352948), (121, 5951876), (124, 5807879), (154, 4676474), (217, 3318788), (242, 2975938), (308, 2338237), (341, 2111956), (434, 1659394), (484, 1487969), (682, 1055978), (847, 850268), (868, 829697), (1364, 527989), (1694, 425134), (2387, 301708), (3388, 212567), (3751, 191996), (4774, 150854), (6857, 105028), (7502, 95998), (9548, 75427), (13714, 52514), (15004, 47999), (26257, 27428)]