18318721540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{3847}}^1$

素因数の和:4026

約数の個数: 144

約数和(自身を含む): 46207953792

約数和(自身を除く): 27889232252

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 113, 140, 172, 196, 215, 226, 245, 301, 430, 452, 490, 565, 602, 791, 860, 980, 1130, 1204, 1505, 1582, 2107, 2260, 3010, 3164, 3847, 3955, 4214, 4859, 5537, 6020, 7694, 7910, 8428, 9718, 10535, 11074, 15388, 15820, 19235, 19436, 21070, 22148, 24295, 26929, 27685, 34013, 38470, 42140, 48590, 53858, 55370, 68026, 76940, 97180, 107716, 110740, 134645, 136052, 165421, 170065, 188503, 238091, 269290, 330842, 340130, 377006, 434711, 476182, 538580, 661684, 680260, 754012, 827105, 869422, 942515, 952364, 1157947, 1190455, 1654210, 1738844, 1885030, 2173555, 2315894, 2380910, 3042977, 3308420, 3770060, 4347110, 4631788, 4761820, 5789735, 6085954, 8105629, 8694220, 11579470, 12171908, 15214885, 16211258, 18692573, 21300839, 23158940, 30429770, 32422516, 37385146, 40528145, 42601678, 60859540, 74770292, 81056290, 85203356, 93462865, 106504195, 130848011, 162112580, 186925730, 213008390, 261696022, 373851460, 426016780, 523392044, 654240055, 915936077, 1308480110, 1831872154, 2616960220, 3663744308, 4579680385, 9159360770, 18318721540]

約数ペア:

[(1, 18318721540), (2, 9159360770), (4, 4579680385), (5, 3663744308), (7, 2616960220), (10, 1831872154), (14, 1308480110), (20, 915936077), (28, 654240055), (35, 523392044), (43, 426016780), (49, 373851460), (70, 261696022), (86, 213008390), (98, 186925730), (113, 162112580), (140, 130848011), (172, 106504195), (196, 93462865), (215, 85203356), (226, 81056290), (245, 74770292), (301, 60859540), (430, 42601678), (452, 40528145), (490, 37385146), (565, 32422516), (602, 30429770), (791, 23158940), (860, 21300839), (980, 18692573), (1130, 16211258), (1204, 15214885), (1505, 12171908), (1582, 11579470), (2107, 8694220), (2260, 8105629), (3010, 6085954), (3164, 5789735), (3847, 4761820), (3955, 4631788), (4214, 4347110), (4859, 3770060), (5537, 3308420), (6020, 3042977), (7694, 2380910), (7910, 2315894), (8428, 2173555), (9718, 1885030), (10535, 1738844), (11074, 1654210), (15388, 1190455), (15820, 1157947), (19235, 952364), (19436, 942515), (21070, 869422), (22148, 827105), (24295, 754012), (26929, 680260), (27685, 661684), (34013, 538580), (38470, 476182), (42140, 434711), (48590, 377006), (53858, 340130), (55370, 330842), (68026, 269290), (76940, 238091), (97180, 188503), (107716, 170065), (110740, 165421), (134645, 136052)]