208767640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{5431}}^1$

素因数の和:5504

約数の個数: 48

約数和(自身を含む): 485457840

約数和(自身を除く): 276690200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 5431, 7688, 9610, 10862, 19220, 21724, 27155, 38440, 43448, 54310, 108620, 168361, 217240, 336722, 673444, 841805, 1346888, 1683610, 3367220, 5219191, 6734440, 10438382, 20876764, 26095955, 41753528, 52191910, 104383820, 208767640]

約数ペア:

[(1, 208767640), (2, 104383820), (4, 52191910), (5, 41753528), (8, 26095955), (10, 20876764), (20, 10438382), (31, 6734440), (40, 5219191), (62, 3367220), (124, 1683610), (155, 1346888), (248, 841805), (310, 673444), (620, 336722), (961, 217240), (1240, 168361), (1922, 108620), (3844, 54310), (4805, 43448), (5431, 38440), (7688, 27155), (9610, 21724), (10862, 19220)]