81449830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:925

約数の個数: 64

約数和(自身を含む): 184343040

約数和(自身を除く): 102893210

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 139, 154, 278, 385, 695, 761, 770, 973, 1390, 1522, 1529, 1946, 3058, 3805, 4865, 5327, 7610, 7645, 8371, 9730, 10654, 10703, 15290, 16742, 21406, 26635, 41855, 53270, 53515, 58597, 83710, 105779, 107030, 117194, 211558, 292985, 528895, 585970, 740453, 1057790, 1163569, 1480906, 2327138, 3702265, 5817845, 7404530, 8144983, 11635690, 16289966, 40724915, 81449830]

約数ペア:

[(1, 81449830), (2, 40724915), (5, 16289966), (7, 11635690), (10, 8144983), (11, 7404530), (14, 5817845), (22, 3702265), (35, 2327138), (55, 1480906), (70, 1163569), (77, 1057790), (110, 740453), (139, 585970), (154, 528895), (278, 292985), (385, 211558), (695, 117194), (761, 107030), (770, 105779), (973, 83710), (1390, 58597), (1522, 53515), (1529, 53270), (1946, 41855), (3058, 26635), (3805, 21406), (4865, 16742), (5327, 15290), (7610, 10703), (7645, 10654), (8371, 9730)]