20635095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 17467305

約数列:

[1, 3, 5, 13, 15, 29, 39, 41, 65, 87, 89, 123, 145, 195, 205, 267, 377, 435, 445, 533, 615, 1131, 1157, 1189, 1335, 1599, 1885, 2581, 2665, 3471, 3567, 3649, 5655, 5785, 5945, 7743, 7995, 10947, 12905, 15457, 17355, 17835, 18245, 33553, 38715, 46371, 47437, 54735, 77285, 100659, 105821, 142311, 167765, 231855, 237185, 317463, 503295, 529105, 711555, 1375673, 1587315, 4127019, 6878365, 20635095]

約数ペア:

[(1, 20635095), (3, 6878365), (5, 4127019), (13, 1587315), (15, 1375673), (29, 711555), (39, 529105), (41, 503295), (65, 317463), (87, 237185), (89, 231855), (123, 167765), (145, 142311), (195, 105821), (205, 100659), (267, 77285), (377, 54735), (435, 47437), (445, 46371), (533, 38715), (615, 33553), (1131, 18245), (1157, 17835), (1189, 17355), (1335, 15457), (1599, 12905), (1885, 10947), (2581, 7995), (2665, 7743), (3471, 5945), (3567, 5785), (3649, 5655)]