4889072020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1889}}^1$

素因数の和:2070

約数の個数: 144

約数和(自身を含む): 12669048000

約数和(自身を除く): 7779975980

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 139, 140, 190, 196, 245, 266, 278, 380, 490, 532, 556, 665, 695, 931, 973, 980, 1330, 1390, 1862, 1889, 1946, 2641, 2660, 2780, 3724, 3778, 3892, 4655, 4865, 5282, 6811, 7556, 9310, 9445, 9730, 10564, 13205, 13223, 13622, 18487, 18620, 18890, 19460, 26410, 26446, 27244, 34055, 35891, 36974, 37780, 52820, 52892, 66115, 68110, 71782, 73948, 92435, 92561, 129409, 132230, 136220, 143564, 179455, 184870, 185122, 251237, 258818, 262571, 264460, 358910, 369740, 370244, 462805, 502474, 517636, 525142, 647045, 717820, 925610, 1004948, 1050284, 1256185, 1294090, 1312855, 1758659, 1837997, 1851220, 2512370, 2588180, 2625710, 3517318, 3675994, 4988849, 5024740, 5251420, 7034636, 7351988, 8793295, 9189985, 9977698, 12865979, 17586590, 18379970, 19955396, 24944245, 25731958, 34921943, 35173180, 36759940, 49888490, 51463916, 64329895, 69843886, 99776980, 128659790, 139687772, 174609715, 244453601, 257319580, 349219430, 488907202, 698438860, 977814404, 1222268005, 2444536010, 4889072020]

約数ペア:

[(1, 4889072020), (2, 2444536010), (4, 1222268005), (5, 977814404), (7, 698438860), (10, 488907202), (14, 349219430), (19, 257319580), (20, 244453601), (28, 174609715), (35, 139687772), (38, 128659790), (49, 99776980), (70, 69843886), (76, 64329895), (95, 51463916), (98, 49888490), (133, 36759940), (139, 35173180), (140, 34921943), (190, 25731958), (196, 24944245), (245, 19955396), (266, 18379970), (278, 17586590), (380, 12865979), (490, 9977698), (532, 9189985), (556, 8793295), (665, 7351988), (695, 7034636), (931, 5251420), (973, 5024740), (980, 4988849), (1330, 3675994), (1390, 3517318), (1862, 2625710), (1889, 2588180), (1946, 2512370), (2641, 1851220), (2660, 1837997), (2780, 1758659), (3724, 1312855), (3778, 1294090), (3892, 1256185), (4655, 1050284), (4865, 1004948), (5282, 925610), (6811, 717820), (7556, 647045), (9310, 525142), (9445, 517636), (9730, 502474), (10564, 462805), (13205, 370244), (13223, 369740), (13622, 358910), (18487, 264460), (18620, 262571), (18890, 258818), (19460, 251237), (26410, 185122), (26446, 184870), (27244, 179455), (34055, 143564), (35891, 136220), (36974, 132230), (37780, 129409), (52820, 92561), (52892, 92435), (66115, 73948), (68110, 71782)]