19603720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 27674360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 127, 136, 170, 227, 254, 340, 454, 508, 635, 680, 908, 1016, 1135, 1270, 1816, 2159, 2270, 2540, 3859, 4318, 4540, 5080, 7718, 8636, 9080, 10795, 15436, 17272, 19295, 21590, 28829, 30872, 38590, 43180, 57658, 77180, 86360, 115316, 144145, 154360, 230632, 288290, 490093, 576580, 980186, 1153160, 1960372, 2450465, 3920744, 4900930, 9801860, 19603720]

約数ペア:

[(1, 19603720), (2, 9801860), (4, 4900930), (5, 3920744), (8, 2450465), (10, 1960372), (17, 1153160), (20, 980186), (34, 576580), (40, 490093), (68, 288290), (85, 230632), (127, 154360), (136, 144145), (170, 115316), (227, 86360), (254, 77180), (340, 57658), (454, 43180), (508, 38590), (635, 30872), (680, 28829), (908, 21590), (1016, 19295), (1135, 17272), (1270, 15436), (1816, 10795), (2159, 9080), (2270, 8636), (2540, 7718), (3859, 5080), (4318, 4540)]