21428480000

素因数分解:

$2^{11}\times 5^4\times {\mathrm{16741}}^1$

素因数の和:16783

約数の個数: 120

約数和(自身を含む): 53544180690

約数和(自身を除く): 32115700690

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 625, 640, 800, 1000, 1024, 1250, 1280, 1600, 2000, 2048, 2500, 2560, 3200, 4000, 5000, 5120, 6400, 8000, 10000, 10240, 12800, 16000, 16741, 20000, 25600, 32000, 33482, 40000, 51200, 64000, 66964, 80000, 83705, 128000, 133928, 160000, 167410, 256000, 267856, 320000, 334820, 418525, 535712, 640000, 669640, 837050, 1071424, 1280000, 1339280, 1674100, 2092625, 2142848, 2678560, 3348200, 4185250, 4285696, 5357120, 6696400, 8370500, 8571392, 10463125, 10714240, 13392800, 16741000, 17142784, 20926250, 21428480, 26785600, 33482000, 34285568, 41852500, 42856960, 53571200, 66964000, 83705000, 85713920, 107142400, 133928000, 167410000, 171427840, 214284800, 267856000, 334820000, 428569600, 535712000, 669640000, 857139200, 1071424000, 1339280000, 2142848000, 2678560000, 4285696000, 5357120000, 10714240000, 21428480000]

約数ペア:

[(1, 21428480000), (2, 10714240000), (4, 5357120000), (5, 4285696000), (8, 2678560000), (10, 2142848000), (16, 1339280000), (20, 1071424000), (25, 857139200), (32, 669640000), (40, 535712000), (50, 428569600), (64, 334820000), (80, 267856000), (100, 214284800), (125, 171427840), (128, 167410000), (160, 133928000), (200, 107142400), (250, 85713920), (256, 83705000), (320, 66964000), (400, 53571200), (500, 42856960), (512, 41852500), (625, 34285568), (640, 33482000), (800, 26785600), (1000, 21428480), (1024, 20926250), (1250, 17142784), (1280, 16741000), (1600, 13392800), (2000, 10714240), (2048, 10463125), (2500, 8571392), (2560, 8370500), (3200, 6696400), (4000, 5357120), (5000, 4285696), (5120, 4185250), (6400, 3348200), (8000, 2678560), (10000, 2142848), (10240, 2092625), (12800, 1674100), (16000, 1339280), (16741, 1280000), (20000, 1071424), (25600, 837050), (32000, 669640), (33482, 640000), (40000, 535712), (51200, 418525), (64000, 334820), (66964, 320000), (80000, 267856), (83705, 256000), (128000, 167410), (133928, 160000)]