21161924800

素因数分解:

$2^6\times 5^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{4091}}^1$

素因数の和:4227

約数の個数: 168

約数和(自身を含む): 53936962992

約数和(自身を除く): 32775038192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 61, 64, 80, 100, 106, 122, 160, 200, 212, 244, 265, 305, 320, 400, 424, 488, 530, 610, 800, 848, 976, 1060, 1220, 1325, 1525, 1600, 1696, 1952, 2120, 2440, 2650, 3050, 3233, 3392, 3904, 4091, 4240, 4880, 5300, 6100, 6466, 8182, 8480, 9760, 10600, 12200, 12932, 16165, 16364, 16960, 19520, 20455, 21200, 24400, 25864, 32330, 32728, 40910, 42400, 48800, 51728, 64660, 65456, 80825, 81820, 84800, 97600, 102275, 103456, 129320, 130912, 161650, 163640, 204550, 206912, 216823, 249551, 258640, 261824, 323300, 327280, 409100, 433646, 499102, 517280, 646600, 654560, 818200, 867292, 998204, 1034560, 1084115, 1247755, 1293200, 1309120, 1636400, 1734584, 1996408, 2168230, 2495510, 2586400, 3272800, 3469168, 3992816, 4336460, 4991020, 5172800, 5420575, 6238775, 6545600, 6938336, 7985632, 8672920, 9982040, 10841150, 12477550, 13226203, 13876672, 15971264, 17345840, 19964080, 21682300, 24955100, 26452406, 34691680, 39928160, 43364600, 49910200, 52904812, 66131015, 69383360, 79856320, 86729200, 99820400, 105809624, 132262030, 173458400, 199640800, 211619248, 264524060, 330655075, 346916800, 399281600, 423238496, 529048120, 661310150, 846476992, 1058096240, 1322620300, 2116192480, 2645240600, 4232384960, 5290481200, 10580962400, 21161924800]

約数ペア:

[(1, 21161924800), (2, 10580962400), (4, 5290481200), (5, 4232384960), (8, 2645240600), (10, 2116192480), (16, 1322620300), (20, 1058096240), (25, 846476992), (32, 661310150), (40, 529048120), (50, 423238496), (53, 399281600), (61, 346916800), (64, 330655075), (80, 264524060), (100, 211619248), (106, 199640800), (122, 173458400), (160, 132262030), (200, 105809624), (212, 99820400), (244, 86729200), (265, 79856320), (305, 69383360), (320, 66131015), (400, 52904812), (424, 49910200), (488, 43364600), (530, 39928160), (610, 34691680), (800, 26452406), (848, 24955100), (976, 21682300), (1060, 19964080), (1220, 17345840), (1325, 15971264), (1525, 13876672), (1600, 13226203), (1696, 12477550), (1952, 10841150), (2120, 9982040), (2440, 8672920), (2650, 7985632), (3050, 6938336), (3233, 6545600), (3392, 6238775), (3904, 5420575), (4091, 5172800), (4240, 4991020), (4880, 4336460), (5300, 3992816), (6100, 3469168), (6466, 3272800), (8182, 2586400), (8480, 2495510), (9760, 2168230), (10600, 1996408), (12200, 1734584), (12932, 1636400), (16165, 1309120), (16364, 1293200), (16960, 1247755), (19520, 1084115), (20455, 1034560), (21200, 998204), (24400, 867292), (25864, 818200), (32330, 654560), (32728, 646600), (40910, 517280), (42400, 499102), (48800, 433646), (51728, 409100), (64660, 327280), (65456, 323300), (80825, 261824), (81820, 258640), (84800, 249551), (97600, 216823), (102275, 206912), (103456, 204550), (129320, 163640), (130912, 161650)]