20123999984

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{2543}}^1\times {\mathrm{44963}}^1$

素因数の和:47525

約数の個数: 40

約数和(自身を含む): 42552490752

約数和(自身を除く): 22428490768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 2543, 5086, 10172, 20344, 27973, 40688, 44963, 55946, 89926, 111892, 179852, 223784, 359704, 447568, 494593, 719408, 989186, 1978372, 3956744, 7913488, 114340909, 228681818, 457363636, 914727272, 1257749999, 1829454544, 2515499998, 5030999996, 10061999992, 20123999984]

約数ペア:

[(1, 20123999984), (2, 10061999992), (4, 5030999996), (8, 2515499998), (11, 1829454544), (16, 1257749999), (22, 914727272), (44, 457363636), (88, 228681818), (176, 114340909), (2543, 7913488), (5086, 3956744), (10172, 1978372), (20344, 989186), (27973, 719408), (40688, 494593), (44963, 447568), (55946, 359704), (89926, 223784), (111892, 179852)]