17201920

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 41942880

約数和(自身を除く): 24740960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 151, 160, 178, 256, 302, 320, 356, 445, 604, 640, 712, 755, 890, 1208, 1280, 1424, 1510, 1780, 2416, 2848, 3020, 3560, 4832, 5696, 6040, 7120, 9664, 11392, 12080, 13439, 14240, 19328, 22784, 24160, 26878, 28480, 38656, 48320, 53756, 56960, 67195, 96640, 107512, 113920, 134390, 193280, 215024, 268780, 430048, 537560, 860096, 1075120, 1720192, 2150240, 3440384, 4300480, 8600960, 17201920]

約数ペア:

[(1, 17201920), (2, 8600960), (4, 4300480), (5, 3440384), (8, 2150240), (10, 1720192), (16, 1075120), (20, 860096), (32, 537560), (40, 430048), (64, 268780), (80, 215024), (89, 193280), (128, 134390), (151, 113920), (160, 107512), (178, 96640), (256, 67195), (302, 56960), (320, 53756), (356, 48320), (445, 38656), (604, 28480), (640, 26878), (712, 24160), (755, 22784), (890, 19328), (1208, 14240), (1280, 13439), (1424, 12080), (1510, 11392), (1780, 9664), (2416, 7120), (2848, 6040), (3020, 5696), (3560, 4832)]