20565862485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{145193}}^1$

素因数の和:145298

約数の個数: 64

約数和(自身を含む): 40143237120

約数和(自身を除く): 19577374635

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 71, 95, 105, 133, 213, 285, 355, 399, 497, 665, 1065, 1349, 1491, 1995, 2485, 4047, 6745, 7455, 9443, 20235, 28329, 47215, 141645, 145193, 435579, 725965, 1016351, 2177895, 2758667, 3049053, 5081755, 8276001, 10308703, 13793335, 15245265, 19310669, 30926109, 41380005, 51543515, 57932007, 72160921, 96553345, 154630545, 195865357, 216482763, 289660035, 360804605, 587596071, 979326785, 1082413815, 1371057499, 2937980355, 4113172497, 6855287495, 20565862485]

約数ペア:

[(1, 20565862485), (3, 6855287495), (5, 4113172497), (7, 2937980355), (15, 1371057499), (19, 1082413815), (21, 979326785), (35, 587596071), (57, 360804605), (71, 289660035), (95, 216482763), (105, 195865357), (133, 154630545), (213, 96553345), (285, 72160921), (355, 57932007), (399, 51543515), (497, 41380005), (665, 30926109), (1065, 19310669), (1349, 15245265), (1491, 13793335), (1995, 10308703), (2485, 8276001), (4047, 5081755), (6745, 3049053), (7455, 2758667), (9443, 2177895), (20235, 1016351), (28329, 725965), (47215, 435579), (141645, 145193)]