19112210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 38263104

約数和(自身を除く): 19150894

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 169, 215, 263, 338, 430, 526, 559, 845, 1118, 1315, 1690, 2630, 2795, 3419, 5590, 6838, 7267, 11309, 14534, 17095, 22618, 34190, 36335, 44447, 56545, 72670, 88894, 113090, 147017, 222235, 294034, 444470, 735085, 1470170, 1911221, 3822442, 9556105, 19112210]

約数ペア:

[(1, 19112210), (2, 9556105), (5, 3822442), (10, 1911221), (13, 1470170), (26, 735085), (43, 444470), (65, 294034), (86, 222235), (130, 147017), (169, 113090), (215, 88894), (263, 72670), (338, 56545), (430, 44447), (526, 36335), (559, 34190), (845, 22618), (1118, 17095), (1315, 14534), (1690, 11309), (2630, 7267), (2795, 6838), (3419, 5590)]