20484660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:206

約数の個数: 192

約数和(自身を含む): 73543680

約数和(自身を除く): 53059020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 28, 30, 34, 35, 38, 42, 51, 57, 60, 68, 70, 76, 84, 85, 95, 102, 105, 114, 119, 133, 140, 151, 170, 190, 204, 210, 228, 238, 255, 266, 285, 302, 323, 340, 357, 380, 399, 420, 453, 476, 510, 532, 570, 595, 604, 646, 665, 714, 755, 798, 906, 969, 1020, 1057, 1140, 1190, 1292, 1330, 1428, 1510, 1596, 1615, 1785, 1812, 1938, 1995, 2114, 2261, 2265, 2380, 2567, 2660, 2869, 3020, 3171, 3230, 3570, 3876, 3990, 4228, 4522, 4530, 4845, 5134, 5285, 5738, 6342, 6460, 6783, 7140, 7701, 7980, 8607, 9044, 9060, 9690, 10268, 10570, 11305, 11476, 12684, 12835, 13566, 14345, 15402, 15855, 17214, 17969, 19380, 20083, 21140, 22610, 25670, 27132, 28690, 30804, 31710, 33915, 34428, 35938, 38505, 40166, 43035, 45220, 48773, 51340, 53907, 57380, 60249, 63420, 67830, 71876, 77010, 80332, 86070, 89845, 97546, 100415, 107814, 120498, 135660, 146319, 154020, 172140, 179690, 195092, 200830, 215628, 240996, 243865, 269535, 292638, 301245, 341411, 359380, 401660, 487730, 539070, 585276, 602490, 682822, 731595, 975460, 1024233, 1078140, 1204980, 1365644, 1463190, 1707055, 2048466, 2926380, 3414110, 4096932, 5121165, 6828220, 10242330, 20484660]

約数ペア:

[(1, 20484660), (2, 10242330), (3, 6828220), (4, 5121165), (5, 4096932), (6, 3414110), (7, 2926380), (10, 2048466), (12, 1707055), (14, 1463190), (15, 1365644), (17, 1204980), (19, 1078140), (20, 1024233), (21, 975460), (28, 731595), (30, 682822), (34, 602490), (35, 585276), (38, 539070), (42, 487730), (51, 401660), (57, 359380), (60, 341411), (68, 301245), (70, 292638), (76, 269535), (84, 243865), (85, 240996), (95, 215628), (102, 200830), (105, 195092), (114, 179690), (119, 172140), (133, 154020), (140, 146319), (151, 135660), (170, 120498), (190, 107814), (204, 100415), (210, 97546), (228, 89845), (238, 86070), (255, 80332), (266, 77010), (285, 71876), (302, 67830), (323, 63420), (340, 60249), (357, 57380), (380, 53907), (399, 51340), (420, 48773), (453, 45220), (476, 43035), (510, 40166), (532, 38505), (570, 35938), (595, 34428), (604, 33915), (646, 31710), (665, 30804), (714, 28690), (755, 27132), (798, 25670), (906, 22610), (969, 21140), (1020, 20083), (1057, 19380), (1140, 17969), (1190, 17214), (1292, 15855), (1330, 15402), (1428, 14345), (1510, 13566), (1596, 12835), (1615, 12684), (1785, 11476), (1812, 11305), (1938, 10570), (1995, 10268), (2114, 9690), (2261, 9060), (2265, 9044), (2380, 8607), (2567, 7980), (2660, 7701), (2869, 7140), (3020, 6783), (3171, 6460), (3230, 6342), (3570, 5738), (3876, 5285), (3990, 5134), (4228, 4845), (4522, 4530)]