215253760

素因数分解:

$2^8\times 5^1\times {\mathrm{211}}^1\times {\mathrm{797}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 518693616

約数和(自身を除く): 303439856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 640, 797, 844, 1055, 1280, 1594, 1688, 2110, 3188, 3376, 3985, 4220, 6376, 6752, 7970, 8440, 12752, 13504, 15940, 16880, 25504, 27008, 31880, 33760, 51008, 54016, 63760, 67520, 102016, 127520, 135040, 168167, 204032, 255040, 270080, 336334, 510080, 672668, 840835, 1020160, 1345336, 1681670, 2690672, 3363340, 5381344, 6726680, 10762688, 13453360, 21525376, 26906720, 43050752, 53813440, 107626880, 215253760]

約数ペア:

[(1, 215253760), (2, 107626880), (4, 53813440), (5, 43050752), (8, 26906720), (10, 21525376), (16, 13453360), (20, 10762688), (32, 6726680), (40, 5381344), (64, 3363340), (80, 2690672), (128, 1681670), (160, 1345336), (211, 1020160), (256, 840835), (320, 672668), (422, 510080), (640, 336334), (797, 270080), (844, 255040), (1055, 204032), (1280, 168167), (1594, 135040), (1688, 127520), (2110, 102016), (3188, 67520), (3376, 63760), (3985, 54016), (4220, 51008), (6376, 33760), (6752, 31880), (7970, 27008), (8440, 25504), (12752, 16880), (13504, 15940)]