644074538

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1\times {\mathrm{397}}^1$

素因数の和:758

約数の個数: 32

約数和(自身を含む): 1012359168

約数和(自身を除く): 368284630

約数列:

[1, 2, 31, 62, 137, 191, 274, 382, 397, 794, 4247, 5921, 8494, 11842, 12307, 24614, 26167, 52334, 54389, 75827, 108778, 151654, 811177, 1622354, 1686059, 2350637, 3372118, 4701274, 10388299, 20776598, 322037269, 644074538]

約数ペア:

[(1, 644074538), (2, 322037269), (31, 20776598), (62, 10388299), (137, 4701274), (191, 3372118), (274, 2350637), (382, 1686059), (397, 1622354), (794, 811177), (4247, 151654), (5921, 108778), (8494, 75827), (11842, 54389), (12307, 52334), (24614, 26167)]