781676390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{509}}^1\times {\mathrm{607}}^1$

素因数の和:1157

約数の個数: 64

約数和(自身を含む): 1607454720

約数和(自身を除く): 825778330

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 509, 607, 1018, 1214, 1265, 2530, 2545, 3035, 5090, 5599, 6070, 6677, 11198, 11707, 13354, 13961, 23414, 27922, 27995, 33385, 55990, 58535, 66770, 69805, 117070, 128777, 139610, 153571, 257554, 307142, 308963, 617926, 643885, 767855, 1287770, 1535710, 1544815, 3089630, 3398593, 6797186, 7106149, 14212298, 16992965, 33985930, 35530745, 71061490, 78167639, 156335278, 390838195, 781676390]

約数ペア:

[(1, 781676390), (2, 390838195), (5, 156335278), (10, 78167639), (11, 71061490), (22, 35530745), (23, 33985930), (46, 16992965), (55, 14212298), (110, 7106149), (115, 6797186), (230, 3398593), (253, 3089630), (506, 1544815), (509, 1535710), (607, 1287770), (1018, 767855), (1214, 643885), (1265, 617926), (2530, 308963), (2545, 307142), (3035, 257554), (5090, 153571), (5599, 139610), (6070, 128777), (6677, 117070), (11198, 69805), (11707, 66770), (13354, 58535), (13961, 55990), (23414, 33385), (27922, 27995)]