20801280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5417}}^1$

素因数の和:5441

約数の個数: 72

約数和(自身を含む): 66446352

約数和(自身を除く): 45645072

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5417, 10834, 16251, 21668, 27085, 32502, 43336, 54170, 65004, 81255, 86672, 108340, 130008, 162510, 173344, 216680, 260016, 325020, 346688, 433360, 520032, 650040, 693376, 866720, 1040064, 1300080, 1386752, 1733440, 2080128, 2600160, 3466880, 4160256, 5200320, 6933760, 10400640, 20801280]

約数ペア:

[(1, 20801280), (2, 10400640), (3, 6933760), (4, 5200320), (5, 4160256), (6, 3466880), (8, 2600160), (10, 2080128), (12, 1733440), (15, 1386752), (16, 1300080), (20, 1040064), (24, 866720), (30, 693376), (32, 650040), (40, 520032), (48, 433360), (60, 346688), (64, 325020), (80, 260016), (96, 216680), (120, 173344), (128, 162510), (160, 130008), (192, 108340), (240, 86672), (256, 81255), (320, 65004), (384, 54170), (480, 43336), (640, 32502), (768, 27085), (960, 21668), (1280, 16251), (1920, 10834), (3840, 5417)]