1820003325

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:372

約数の個数: 144

約数和(自身を含む): 3676264704

約数和(自身を除く): 1856261379

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 47, 49, 75, 105, 123, 141, 147, 175, 205, 235, 245, 257, 287, 329, 525, 615, 705, 735, 771, 861, 987, 1025, 1175, 1225, 1285, 1435, 1645, 1799, 1927, 2009, 2303, 3075, 3525, 3675, 3855, 4305, 4935, 5397, 5781, 6027, 6425, 6909, 7175, 8225, 8995, 9635, 10045, 10537, 11515, 12079, 12593, 13489, 19275, 21525, 24675, 26985, 28905, 30135, 31611, 34545, 36237, 37779, 40467, 44975, 48175, 50225, 52685, 57575, 60395, 62965, 67445, 73759, 84553, 94423, 134925, 144525, 150675, 158055, 172725, 181185, 188895, 202335, 221277, 253659, 263425, 283269, 301975, 314825, 337225, 368795, 422765, 472115, 495239, 516313, 591871, 790275, 905925, 944475, 1011675, 1106385, 1268295, 1416345, 1485717, 1548939, 1775613, 1843975, 2113825, 2360575, 2476195, 2581565, 2959355, 3466673, 5531925, 6341475, 7081725, 7428585, 7744695, 8878065, 10400019, 12380975, 12907825, 14796775, 17333365, 24266711, 37142925, 38723475, 44390325, 52000095, 72800133, 86666825, 121333555, 260000475, 364000665, 606667775, 1820003325]

約数ペア:

[(1, 1820003325), (3, 606667775), (5, 364000665), (7, 260000475), (15, 121333555), (21, 86666825), (25, 72800133), (35, 52000095), (41, 44390325), (47, 38723475), (49, 37142925), (75, 24266711), (105, 17333365), (123, 14796775), (141, 12907825), (147, 12380975), (175, 10400019), (205, 8878065), (235, 7744695), (245, 7428585), (257, 7081725), (287, 6341475), (329, 5531925), (525, 3466673), (615, 2959355), (705, 2581565), (735, 2476195), (771, 2360575), (861, 2113825), (987, 1843975), (1025, 1775613), (1175, 1548939), (1225, 1485717), (1285, 1416345), (1435, 1268295), (1645, 1106385), (1799, 1011675), (1927, 944475), (2009, 905925), (2303, 790275), (3075, 591871), (3525, 516313), (3675, 495239), (3855, 472115), (4305, 422765), (4935, 368795), (5397, 337225), (5781, 314825), (6027, 301975), (6425, 283269), (6909, 263425), (7175, 253659), (8225, 221277), (8995, 202335), (9635, 188895), (10045, 181185), (10537, 172725), (11515, 158055), (12079, 150675), (12593, 144525), (13489, 134925), (19275, 94423), (21525, 84553), (24675, 73759), (26985, 67445), (28905, 62965), (30135, 60395), (31611, 57575), (34545, 52685), (36237, 50225), (37779, 48175), (40467, 44975)]