20287811648

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{840841}}^1$

素因数の和:840895

約数の個数: 56

約数和(自身を含む): 44850512280

約数和(自身を除く): 24562700632

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 208, 232, 377, 416, 464, 754, 832, 928, 1508, 1856, 3016, 6032, 12064, 24128, 840841, 1681682, 3363364, 6726728, 10930933, 13453456, 21861866, 24384389, 26906912, 43723732, 48768778, 53813824, 87447464, 97537556, 174894928, 195075112, 316997057, 349789856, 390150224, 633994114, 699579712, 780300448, 1267988228, 1560600896, 2535976456, 5071952912, 10143905824, 20287811648]

約数ペア:

[(1, 20287811648), (2, 10143905824), (4, 5071952912), (8, 2535976456), (13, 1560600896), (16, 1267988228), (26, 780300448), (29, 699579712), (32, 633994114), (52, 390150224), (58, 349789856), (64, 316997057), (104, 195075112), (116, 174894928), (208, 97537556), (232, 87447464), (377, 53813824), (416, 48768778), (464, 43723732), (754, 26906912), (832, 24384389), (928, 21861866), (1508, 13453456), (1856, 10930933), (3016, 6726728), (6032, 3363364), (12064, 1681682), (24128, 840841)]