640032195

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1873}}^1$

素因数の和:2020

約数の個数: 64

約数和(自身を含む): 1187366400

約数和(自身を除く): 547334205

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 109, 165, 209, 285, 327, 545, 627, 1045, 1199, 1635, 1873, 2071, 3135, 3597, 5619, 5995, 6213, 9365, 10355, 17985, 20603, 22781, 28095, 31065, 35587, 61809, 68343, 103015, 106761, 113905, 177935, 204157, 309045, 341715, 391457, 533805, 612471, 1020785, 1174371, 1957285, 2245727, 3062355, 3878983, 5871855, 6737181, 11228635, 11636949, 19394915, 33685905, 42668813, 58184745, 128006439, 213344065, 640032195]

約数ペア:

[(1, 640032195), (3, 213344065), (5, 128006439), (11, 58184745), (15, 42668813), (19, 33685905), (33, 19394915), (55, 11636949), (57, 11228635), (95, 6737181), (109, 5871855), (165, 3878983), (209, 3062355), (285, 2245727), (327, 1957285), (545, 1174371), (627, 1020785), (1045, 612471), (1199, 533805), (1635, 391457), (1873, 341715), (2071, 309045), (3135, 204157), (3597, 177935), (5619, 113905), (5995, 106761), (6213, 103015), (9365, 68343), (10355, 61809), (17985, 35587), (20603, 31065), (22781, 28095)]