20199987350

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:387

約数の個数: 144

約数和(自身を含む): 41010656400

約数和(自身を除く): 20810669050

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 89, 113, 139, 170, 178, 226, 278, 289, 425, 445, 565, 578, 695, 850, 890, 1130, 1390, 1445, 1513, 1921, 2225, 2363, 2825, 2890, 3026, 3475, 3842, 4450, 4726, 5650, 6950, 7225, 7565, 9605, 10057, 11815, 12371, 14450, 15130, 15707, 19210, 20114, 23630, 24742, 25721, 31414, 32657, 37825, 40171, 48025, 50285, 51442, 59075, 61855, 65314, 75650, 78535, 80342, 96050, 100570, 118150, 123710, 128605, 157070, 163285, 170969, 200855, 210307, 251425, 257210, 267019, 309275, 326570, 341938, 392675, 401710, 420614, 502850, 534038, 618550, 643025, 785350, 816425, 854845, 1004275, 1051535, 1286050, 1335095, 1397923, 1632850, 1709690, 2008550, 2103070, 2670190, 2795846, 2906473, 3575219, 4274225, 4539323, 5257675, 5812946, 6675475, 6989615, 7150438, 8548450, 9078646, 10515350, 13350950, 13979230, 14532365, 17876095, 22696615, 23764691, 29064730, 34948075, 35752190, 45393230, 47529382, 69896150, 72661825, 89380475, 113483075, 118823455, 145323650, 178760950, 226966150, 237646910, 403999747, 594117275, 807999494, 1188234550, 2019998735, 4039997470, 10099993675, 20199987350]

約数ペア:

[(1, 20199987350), (2, 10099993675), (5, 4039997470), (10, 2019998735), (17, 1188234550), (25, 807999494), (34, 594117275), (50, 403999747), (85, 237646910), (89, 226966150), (113, 178760950), (139, 145323650), (170, 118823455), (178, 113483075), (226, 89380475), (278, 72661825), (289, 69896150), (425, 47529382), (445, 45393230), (565, 35752190), (578, 34948075), (695, 29064730), (850, 23764691), (890, 22696615), (1130, 17876095), (1390, 14532365), (1445, 13979230), (1513, 13350950), (1921, 10515350), (2225, 9078646), (2363, 8548450), (2825, 7150438), (2890, 6989615), (3026, 6675475), (3475, 5812946), (3842, 5257675), (4450, 4539323), (4726, 4274225), (5650, 3575219), (6950, 2906473), (7225, 2795846), (7565, 2670190), (9605, 2103070), (10057, 2008550), (11815, 1709690), (12371, 1632850), (14450, 1397923), (15130, 1335095), (15707, 1286050), (19210, 1051535), (20114, 1004275), (23630, 854845), (24742, 816425), (25721, 785350), (31414, 643025), (32657, 618550), (37825, 534038), (40171, 502850), (48025, 420614), (50285, 401710), (51442, 392675), (59075, 341938), (61855, 326570), (65314, 309275), (75650, 267019), (78535, 257210), (80342, 251425), (96050, 210307), (100570, 200855), (118150, 170969), (123710, 163285), (128605, 157070)]