30720404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1320

約数の個数: 48

約数和(自身を含む): 64680000

約数和(自身を除く): 33959596

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 143, 172, 286, 473, 559, 572, 946, 1118, 1249, 1892, 2236, 2498, 4996, 6149, 12298, 13739, 16237, 24596, 27478, 32474, 53707, 54956, 64948, 107414, 178607, 214828, 357214, 590777, 698191, 714428, 1181554, 1396382, 2363108, 2792764, 7680101, 15360202, 30720404]

約数ペア:

[(1, 30720404), (2, 15360202), (4, 7680101), (11, 2792764), (13, 2363108), (22, 1396382), (26, 1181554), (43, 714428), (44, 698191), (52, 590777), (86, 357214), (143, 214828), (172, 178607), (286, 107414), (473, 64948), (559, 54956), (572, 53707), (946, 32474), (1118, 27478), (1249, 24596), (1892, 16237), (2236, 13739), (2498, 12298), (4996, 6149)]