208857280

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15919}}^1$

素因数の和:15977

約数の個数: 56

約数和(自身を含む): 509503680

約数和(自身を除く): 300646400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 160, 164, 205, 320, 328, 410, 656, 820, 1312, 1640, 2624, 3280, 6560, 13120, 15919, 31838, 63676, 79595, 127352, 159190, 254704, 318380, 509408, 636760, 652679, 1018816, 1273520, 1305358, 2547040, 2610716, 3263395, 5094080, 5221432, 6526790, 10442864, 13053580, 20885728, 26107160, 41771456, 52214320, 104428640, 208857280]

約数ペア:

[(1, 208857280), (2, 104428640), (4, 52214320), (5, 41771456), (8, 26107160), (10, 20885728), (16, 13053580), (20, 10442864), (32, 6526790), (40, 5221432), (41, 5094080), (64, 3263395), (80, 2610716), (82, 2547040), (160, 1305358), (164, 1273520), (205, 1018816), (320, 652679), (328, 636760), (410, 509408), (656, 318380), (820, 254704), (1312, 159190), (1640, 127352), (2624, 79595), (3280, 63676), (6560, 31838), (13120, 15919)]