20213365560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{283}}^1\times {\mathrm{431}}^1\times {\mathrm{1381}}^1$

素因数の和:2109

約数の個数: 128

約数和(自身を含む): 61039733760

約数和(自身を除く): 40826368200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 283, 431, 566, 849, 862, 1132, 1293, 1381, 1415, 1698, 1724, 2155, 2264, 2586, 2762, 2830, 3396, 3448, 4143, 4245, 4310, 5172, 5524, 5660, 6465, 6792, 6905, 8286, 8490, 8620, 10344, 11048, 11320, 12930, 13810, 16572, 16980, 17240, 20715, 25860, 27620, 33144, 33960, 41430, 51720, 55240, 82860, 121973, 165720, 243946, 365919, 390823, 487892, 595211, 609865, 731838, 781646, 975784, 1172469, 1190422, 1219730, 1463676, 1563292, 1785633, 1829595, 1954115, 2344938, 2380844, 2439460, 2927352, 2976055, 3126584, 3571266, 3659190, 3908230, 4689876, 4761688, 4878920, 5862345, 5952110, 7142532, 7318380, 7816460, 8928165, 9379752, 11724690, 11904220, 14285064, 14636760, 15632920, 17856330, 23449380, 23808440, 35712660, 46898760, 71425320, 168444713, 336889426, 505334139, 673778852, 842223565, 1010668278, 1347557704, 1684447130, 2021336556, 2526670695, 3368894260, 4042673112, 5053341390, 6737788520, 10106682780, 20213365560]

約数ペア:

[(1, 20213365560), (2, 10106682780), (3, 6737788520), (4, 5053341390), (5, 4042673112), (6, 3368894260), (8, 2526670695), (10, 2021336556), (12, 1684447130), (15, 1347557704), (20, 1010668278), (24, 842223565), (30, 673778852), (40, 505334139), (60, 336889426), (120, 168444713), (283, 71425320), (431, 46898760), (566, 35712660), (849, 23808440), (862, 23449380), (1132, 17856330), (1293, 15632920), (1381, 14636760), (1415, 14285064), (1698, 11904220), (1724, 11724690), (2155, 9379752), (2264, 8928165), (2586, 7816460), (2762, 7318380), (2830, 7142532), (3396, 5952110), (3448, 5862345), (4143, 4878920), (4245, 4761688), (4310, 4689876), (5172, 3908230), (5524, 3659190), (5660, 3571266), (6465, 3126584), (6792, 2976055), (6905, 2927352), (8286, 2439460), (8490, 2380844), (8620, 2344938), (10344, 1954115), (11048, 1829595), (11320, 1785633), (12930, 1563292), (13810, 1463676), (16572, 1219730), (16980, 1190422), (17240, 1172469), (20715, 975784), (25860, 781646), (27620, 731838), (33144, 609865), (33960, 595211), (41430, 487892), (51720, 390823), (55240, 365919), (82860, 243946), (121973, 165720)]