20721799080

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{27449}}^1$

素因数の和:27705

約数の個数: 160

約数和(自身を含む): 69949737000

約数和(自身を除く): 49227937920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 233, 270, 324, 360, 405, 466, 540, 648, 699, 810, 932, 1080, 1165, 1398, 1620, 1864, 2097, 2330, 2796, 3240, 3495, 4194, 4660, 5592, 6291, 6990, 8388, 9320, 10485, 12582, 13980, 16776, 18873, 20970, 25164, 27449, 27960, 31455, 37746, 41940, 50328, 54898, 62910, 75492, 82347, 83880, 94365, 109796, 125820, 137245, 150984, 164694, 188730, 219592, 247041, 251640, 274490, 329388, 377460, 411735, 494082, 548980, 658776, 741123, 754920, 823470, 988164, 1097960, 1235205, 1482246, 1646940, 1976328, 2223369, 2470410, 2964492, 3293880, 3705615, 4446738, 4940820, 5928984, 6395617, 7411230, 8893476, 9881640, 11116845, 12791234, 14822460, 17786952, 19186851, 22233690, 25582468, 29644920, 31978085, 38373702, 44467380, 51164936, 57560553, 63956170, 76747404, 88934760, 95934255, 115121106, 127912340, 153494808, 172681659, 191868510, 230242212, 255824680, 287802765, 345363318, 383737020, 460484424, 518044977, 575605530, 690726636, 767474040, 863408295, 1036089954, 1151211060, 1381453272, 1726816590, 2072179908, 2302422120, 2590224885, 3453633180, 4144359816, 5180449770, 6907266360, 10360899540, 20721799080]

約数ペア:

[(1, 20721799080), (2, 10360899540), (3, 6907266360), (4, 5180449770), (5, 4144359816), (6, 3453633180), (8, 2590224885), (9, 2302422120), (10, 2072179908), (12, 1726816590), (15, 1381453272), (18, 1151211060), (20, 1036089954), (24, 863408295), (27, 767474040), (30, 690726636), (36, 575605530), (40, 518044977), (45, 460484424), (54, 383737020), (60, 345363318), (72, 287802765), (81, 255824680), (90, 230242212), (108, 191868510), (120, 172681659), (135, 153494808), (162, 127912340), (180, 115121106), (216, 95934255), (233, 88934760), (270, 76747404), (324, 63956170), (360, 57560553), (405, 51164936), (466, 44467380), (540, 38373702), (648, 31978085), (699, 29644920), (810, 25582468), (932, 22233690), (1080, 19186851), (1165, 17786952), (1398, 14822460), (1620, 12791234), (1864, 11116845), (2097, 9881640), (2330, 8893476), (2796, 7411230), (3240, 6395617), (3495, 5928984), (4194, 4940820), (4660, 4446738), (5592, 3705615), (6291, 3293880), (6990, 2964492), (8388, 2470410), (9320, 2223369), (10485, 1976328), (12582, 1646940), (13980, 1482246), (16776, 1235205), (18873, 1097960), (20970, 988164), (25164, 823470), (27449, 754920), (27960, 741123), (31455, 658776), (37746, 548980), (41940, 494082), (50328, 411735), (54898, 377460), (62910, 329388), (75492, 274490), (82347, 251640), (83880, 247041), (94365, 219592), (109796, 188730), (125820, 164694), (137245, 150984)]