889987980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2939}}^1$

素因数の和:3068

約数の個数: 144

約数和(自身を含む): 2927957760

約数和(自身を除く): 2037969780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 103, 105, 140, 147, 196, 206, 210, 245, 294, 309, 412, 420, 490, 515, 588, 618, 721, 735, 980, 1030, 1236, 1442, 1470, 1545, 2060, 2163, 2884, 2939, 2940, 3090, 3605, 4326, 5047, 5878, 6180, 7210, 8652, 8817, 10094, 10815, 11756, 14420, 14695, 15141, 17634, 20188, 20573, 21630, 25235, 29390, 30282, 35268, 41146, 43260, 44085, 50470, 58780, 60564, 61719, 75705, 82292, 88170, 100940, 102865, 123438, 144011, 151410, 176340, 205730, 246876, 288022, 302717, 302820, 308595, 411460, 432033, 576044, 605434, 617190, 720055, 864066, 908151, 1210868, 1234380, 1440110, 1513585, 1728132, 1816302, 2119019, 2160165, 2880220, 3027170, 3632604, 4238038, 4320330, 4540755, 6054340, 6357057, 8476076, 8640660, 9081510, 10595095, 12714114, 14833133, 18163020, 21190190, 25428228, 29666266, 31785285, 42380380, 44499399, 59332532, 63570570, 74165665, 88998798, 127141140, 148331330, 177997596, 222496995, 296662660, 444993990, 889987980]

約数ペア:

[(1, 889987980), (2, 444993990), (3, 296662660), (4, 222496995), (5, 177997596), (6, 148331330), (7, 127141140), (10, 88998798), (12, 74165665), (14, 63570570), (15, 59332532), (20, 44499399), (21, 42380380), (28, 31785285), (30, 29666266), (35, 25428228), (42, 21190190), (49, 18163020), (60, 14833133), (70, 12714114), (84, 10595095), (98, 9081510), (103, 8640660), (105, 8476076), (140, 6357057), (147, 6054340), (196, 4540755), (206, 4320330), (210, 4238038), (245, 3632604), (294, 3027170), (309, 2880220), (412, 2160165), (420, 2119019), (490, 1816302), (515, 1728132), (588, 1513585), (618, 1440110), (721, 1234380), (735, 1210868), (980, 908151), (1030, 864066), (1236, 720055), (1442, 617190), (1470, 605434), (1545, 576044), (2060, 432033), (2163, 411460), (2884, 308595), (2939, 302820), (2940, 302717), (3090, 288022), (3605, 246876), (4326, 205730), (5047, 176340), (5878, 151410), (6180, 144011), (7210, 123438), (8652, 102865), (8817, 100940), (10094, 88170), (10815, 82292), (11756, 75705), (14420, 61719), (14695, 60564), (15141, 58780), (17634, 50470), (20188, 44085), (20573, 43260), (21630, 41146), (25235, 35268), (29390, 30282)]