20565372940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{7159}}^1$

素因数の和:7280

約数の個数: 144

約数和(自身を含む): 53176919040

約数和(自身を除く): 32611546100

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 71, 85, 119, 140, 142, 170, 238, 284, 289, 340, 355, 476, 497, 578, 595, 710, 994, 1156, 1190, 1207, 1420, 1445, 1988, 2023, 2380, 2414, 2485, 2890, 4046, 4828, 4970, 5780, 6035, 7159, 8092, 8449, 9940, 10115, 12070, 14318, 16898, 20230, 20519, 24140, 28636, 33796, 35795, 40460, 41038, 42245, 50113, 71590, 82076, 84490, 100226, 102595, 121703, 143180, 143633, 168980, 200452, 205190, 243406, 250565, 287266, 410380, 486812, 501130, 508289, 574532, 608515, 718165, 851921, 1002260, 1016578, 1217030, 1436330, 1703842, 2033156, 2068951, 2434060, 2541445, 2872660, 3407684, 3558023, 4137902, 4259605, 5082890, 7116046, 8275804, 8519210, 8640913, 10165780, 10344755, 14232092, 14482657, 17038420, 17281826, 17790115, 20689510, 28965314, 34563652, 35580230, 41379020, 43204565, 57930628, 60486391, 71160460, 72413285, 86409130, 120972782, 144826570, 146895521, 172818260, 241945564, 289653140, 293791042, 302431955, 587582084, 604863910, 734477605, 1028268647, 1209727820, 1468955210, 2056537294, 2937910420, 4113074588, 5141343235, 10282686470, 20565372940]

約数ペア:

[(1, 20565372940), (2, 10282686470), (4, 5141343235), (5, 4113074588), (7, 2937910420), (10, 2056537294), (14, 1468955210), (17, 1209727820), (20, 1028268647), (28, 734477605), (34, 604863910), (35, 587582084), (68, 302431955), (70, 293791042), (71, 289653140), (85, 241945564), (119, 172818260), (140, 146895521), (142, 144826570), (170, 120972782), (238, 86409130), (284, 72413285), (289, 71160460), (340, 60486391), (355, 57930628), (476, 43204565), (497, 41379020), (578, 35580230), (595, 34563652), (710, 28965314), (994, 20689510), (1156, 17790115), (1190, 17281826), (1207, 17038420), (1420, 14482657), (1445, 14232092), (1988, 10344755), (2023, 10165780), (2380, 8640913), (2414, 8519210), (2485, 8275804), (2890, 7116046), (4046, 5082890), (4828, 4259605), (4970, 4137902), (5780, 3558023), (6035, 3407684), (7159, 2872660), (8092, 2541445), (8449, 2434060), (9940, 2068951), (10115, 2033156), (12070, 1703842), (14318, 1436330), (16898, 1217030), (20230, 1016578), (20519, 1002260), (24140, 851921), (28636, 718165), (33796, 608515), (35795, 574532), (40460, 508289), (41038, 501130), (42245, 486812), (50113, 410380), (71590, 287266), (82076, 250565), (84490, 243406), (100226, 205190), (102595, 200452), (121703, 168980), (143180, 143633)]