20010376984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1543}}^1\times {\mathrm{6563}}^1$

素因数の和:8144

約数の個数: 64

約数和(自身を含む): 42566227200

約数和(自身を除く): 22555850216

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1543, 1976, 3086, 6172, 6563, 12344, 13126, 20059, 26252, 29317, 40118, 52504, 58634, 80236, 85319, 117268, 124697, 160472, 170638, 234536, 249394, 341276, 381121, 498788, 682552, 762242, 997576, 1524484, 1621061, 3048968, 3242122, 6484244, 10126709, 12968488, 20253418, 40506836, 81013672, 131647217, 192407471, 263294434, 384814942, 526588868, 769629884, 1053177736, 1539259768, 2501297123, 5002594246, 10005188492, 20010376984]

約数ペア:

[(1, 20010376984), (2, 10005188492), (4, 5002594246), (8, 2501297123), (13, 1539259768), (19, 1053177736), (26, 769629884), (38, 526588868), (52, 384814942), (76, 263294434), (104, 192407471), (152, 131647217), (247, 81013672), (494, 40506836), (988, 20253418), (1543, 12968488), (1976, 10126709), (3086, 6484244), (6172, 3242122), (6563, 3048968), (12344, 1621061), (13126, 1524484), (20059, 997576), (26252, 762242), (29317, 682552), (40118, 498788), (52504, 381121), (58634, 341276), (80236, 249394), (85319, 234536), (117268, 170638), (124697, 160472)]