639804552

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1\times {\mathrm{1607}}^1$

素因数の和:1982

約数の個数: 64

約数和(自身を含む): 1635914880

約数和(自身を除く): 996110328

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 313, 318, 424, 626, 636, 939, 1252, 1272, 1607, 1878, 2504, 3214, 3756, 4821, 6428, 7512, 9642, 12856, 16589, 19284, 33178, 38568, 49767, 66356, 85171, 99534, 132712, 170342, 199068, 255513, 340684, 398136, 502991, 511026, 681368, 1005982, 1022052, 1508973, 2011964, 2044104, 3017946, 4023928, 6035892, 12071784, 26658523, 53317046, 79975569, 106634092, 159951138, 213268184, 319902276, 639804552]

約数ペア:

[(1, 639804552), (2, 319902276), (3, 213268184), (4, 159951138), (6, 106634092), (8, 79975569), (12, 53317046), (24, 26658523), (53, 12071784), (106, 6035892), (159, 4023928), (212, 3017946), (313, 2044104), (318, 2011964), (424, 1508973), (626, 1022052), (636, 1005982), (939, 681368), (1252, 511026), (1272, 502991), (1607, 398136), (1878, 340684), (2504, 255513), (3214, 199068), (3756, 170342), (4821, 132712), (6428, 99534), (7512, 85171), (9642, 66356), (12856, 49767), (16589, 38568), (19284, 33178)]