1285298420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{449}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 3309465600

約数和(自身を除く): 2024167180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 127, 140, 161, 196, 230, 245, 254, 322, 449, 460, 490, 508, 635, 644, 805, 889, 898, 980, 1127, 1270, 1610, 1778, 1796, 2245, 2254, 2540, 2921, 3143, 3220, 3556, 4445, 4490, 4508, 5635, 5842, 6223, 6286, 8890, 8980, 10327, 11270, 11684, 12446, 12572, 14605, 15715, 17780, 20447, 20654, 22001, 22540, 24892, 29210, 31115, 31430, 40894, 41308, 44002, 51635, 57023, 58420, 62230, 62860, 72289, 81788, 88004, 102235, 103270, 110005, 114046, 124460, 143129, 144578, 204470, 206540, 220010, 228092, 285115, 286258, 289156, 361445, 399161, 408940, 440020, 506023, 570230, 572516, 715645, 722890, 798322, 1012046, 1140460, 1311529, 1431290, 1445780, 1596644, 1995805, 2024092, 2530115, 2623058, 2794127, 2862580, 3991610, 5060230, 5246116, 5588254, 6557645, 7983220, 9180703, 10120460, 11176508, 13115290, 13970635, 18361406, 26230580, 27941270, 36722812, 45903515, 55882540, 64264921, 91807030, 128529842, 183614060, 257059684, 321324605, 642649210, 1285298420]

約数ペア:

[(1, 1285298420), (2, 642649210), (4, 321324605), (5, 257059684), (7, 183614060), (10, 128529842), (14, 91807030), (20, 64264921), (23, 55882540), (28, 45903515), (35, 36722812), (46, 27941270), (49, 26230580), (70, 18361406), (92, 13970635), (98, 13115290), (115, 11176508), (127, 10120460), (140, 9180703), (161, 7983220), (196, 6557645), (230, 5588254), (245, 5246116), (254, 5060230), (322, 3991610), (449, 2862580), (460, 2794127), (490, 2623058), (508, 2530115), (635, 2024092), (644, 1995805), (805, 1596644), (889, 1445780), (898, 1431290), (980, 1311529), (1127, 1140460), (1270, 1012046), (1610, 798322), (1778, 722890), (1796, 715645), (2245, 572516), (2254, 570230), (2540, 506023), (2921, 440020), (3143, 408940), (3220, 399161), (3556, 361445), (4445, 289156), (4490, 286258), (4508, 285115), (5635, 228092), (5842, 220010), (6223, 206540), (6286, 204470), (8890, 144578), (8980, 143129), (10327, 124460), (11270, 114046), (11684, 110005), (12446, 103270), (12572, 102235), (14605, 88004), (15715, 81788), (17780, 72289), (20447, 62860), (20654, 62230), (22001, 58420), (22540, 57023), (24892, 51635), (29210, 44002), (31115, 41308), (31430, 40894)]