20125915515

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{1901}}^1$

素因数の和:2181

約数の個数: 96

約数和(自身を含む): 37300258944

約数和(自身を除く): 17174343429

約数列:

[1, 3, 5, 9, 15, 23, 45, 53, 69, 115, 159, 193, 207, 265, 345, 477, 579, 795, 965, 1035, 1219, 1737, 1901, 2385, 2895, 3657, 4439, 5703, 6095, 8685, 9505, 10229, 10971, 13317, 17109, 18285, 22195, 28515, 30687, 39951, 43723, 51145, 54855, 66585, 85545, 92061, 100753, 131169, 153435, 199755, 218615, 235267, 302259, 366893, 393507, 460305, 503765, 655845, 705801, 906777, 1100679, 1176335, 1511295, 1834465, 1967535, 2117403, 2317319, 3302037, 3529005, 4533885, 5503395, 6951957, 8438539, 10587015, 11586595, 16510185, 19445329, 20855871, 25315617, 34759785, 42192695, 58335987, 75946851, 97226645, 104279355, 126578085, 175007961, 291679935, 379734255, 447242567, 875039805, 1341727701, 2236212835, 4025183103, 6708638505, 20125915515]

約数ペア:

[(1, 20125915515), (3, 6708638505), (5, 4025183103), (9, 2236212835), (15, 1341727701), (23, 875039805), (45, 447242567), (53, 379734255), (69, 291679935), (115, 175007961), (159, 126578085), (193, 104279355), (207, 97226645), (265, 75946851), (345, 58335987), (477, 42192695), (579, 34759785), (795, 25315617), (965, 20855871), (1035, 19445329), (1219, 16510185), (1737, 11586595), (1901, 10587015), (2385, 8438539), (2895, 6951957), (3657, 5503395), (4439, 4533885), (5703, 3529005), (6095, 3302037), (8685, 2317319), (9505, 2117403), (10229, 1967535), (10971, 1834465), (13317, 1511295), (17109, 1176335), (18285, 1100679), (22195, 906777), (28515, 705801), (30687, 655845), (39951, 503765), (43723, 460305), (51145, 393507), (54855, 366893), (66585, 302259), (85545, 235267), (92061, 218615), (100753, 199755), (131169, 153435)]