164748800

素因数分解:

$2^9\times 5^2\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 120

約数和(自身を含む): 416835672

約数和(自身を除く): 252086872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 61, 64, 80, 100, 122, 128, 160, 200, 211, 244, 256, 305, 320, 400, 422, 488, 512, 610, 640, 800, 844, 976, 1055, 1220, 1280, 1525, 1600, 1688, 1952, 2110, 2440, 2560, 3050, 3200, 3376, 3904, 4220, 4880, 5275, 6100, 6400, 6752, 7808, 8440, 9760, 10550, 12200, 12800, 12871, 13504, 15616, 16880, 19520, 21100, 24400, 25742, 27008, 31232, 33760, 39040, 42200, 48800, 51484, 54016, 64355, 67520, 78080, 84400, 97600, 102968, 108032, 128710, 135040, 156160, 168800, 195200, 205936, 257420, 270080, 321775, 337600, 390400, 411872, 514840, 540160, 643550, 675200, 780800, 823744, 1029680, 1287100, 1350400, 1647488, 2059360, 2574200, 2700800, 3294976, 4118720, 5148400, 6589952, 8237440, 10296800, 16474880, 20593600, 32949760, 41187200, 82374400, 164748800]

約数ペア:

[(1, 164748800), (2, 82374400), (4, 41187200), (5, 32949760), (8, 20593600), (10, 16474880), (16, 10296800), (20, 8237440), (25, 6589952), (32, 5148400), (40, 4118720), (50, 3294976), (61, 2700800), (64, 2574200), (80, 2059360), (100, 1647488), (122, 1350400), (128, 1287100), (160, 1029680), (200, 823744), (211, 780800), (244, 675200), (256, 643550), (305, 540160), (320, 514840), (400, 411872), (422, 390400), (488, 337600), (512, 321775), (610, 270080), (640, 257420), (800, 205936), (844, 195200), (976, 168800), (1055, 156160), (1220, 135040), (1280, 128710), (1525, 108032), (1600, 102968), (1688, 97600), (1952, 84400), (2110, 78080), (2440, 67520), (2560, 64355), (3050, 54016), (3200, 51484), (3376, 48800), (3904, 42200), (4220, 39040), (4880, 33760), (5275, 31232), (6100, 27008), (6400, 25742), (6752, 24400), (7808, 21100), (8440, 19520), (9760, 16880), (10550, 15616), (12200, 13504), (12800, 12871)]