128243920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:765

約数の個数: 160

約数和(自身を含む): 380332800

約数和(自身を除く): 252088880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 80, 85, 95, 112, 119, 133, 136, 140, 152, 170, 190, 238, 266, 272, 280, 304, 323, 340, 380, 476, 532, 560, 595, 646, 665, 680, 709, 760, 952, 1064, 1190, 1292, 1330, 1360, 1418, 1520, 1615, 1904, 2128, 2261, 2380, 2584, 2660, 2836, 3230, 3545, 4522, 4760, 4963, 5168, 5320, 5672, 6460, 7090, 9044, 9520, 9926, 10640, 11305, 11344, 12053, 12920, 13471, 14180, 18088, 19852, 22610, 24106, 24815, 25840, 26942, 28360, 36176, 39704, 45220, 48212, 49630, 53884, 56720, 60265, 67355, 79408, 84371, 90440, 94297, 96424, 99260, 107768, 120530, 134710, 168742, 180880, 188594, 192848, 198520, 215536, 229007, 241060, 269420, 337484, 377188, 397040, 421855, 458014, 471485, 482120, 538840, 674968, 754376, 843710, 916028, 942970, 964240, 1077680, 1145035, 1349936, 1508752, 1603049, 1687420, 1832056, 1885940, 2290070, 3206098, 3374840, 3664112, 3771880, 4580140, 6412196, 6749680, 7543760, 8015245, 9160280, 12824392, 16030490, 18320560, 25648784, 32060980, 64121960, 128243920]

約数ペア:

[(1, 128243920), (2, 64121960), (4, 32060980), (5, 25648784), (7, 18320560), (8, 16030490), (10, 12824392), (14, 9160280), (16, 8015245), (17, 7543760), (19, 6749680), (20, 6412196), (28, 4580140), (34, 3771880), (35, 3664112), (38, 3374840), (40, 3206098), (56, 2290070), (68, 1885940), (70, 1832056), (76, 1687420), (80, 1603049), (85, 1508752), (95, 1349936), (112, 1145035), (119, 1077680), (133, 964240), (136, 942970), (140, 916028), (152, 843710), (170, 754376), (190, 674968), (238, 538840), (266, 482120), (272, 471485), (280, 458014), (304, 421855), (323, 397040), (340, 377188), (380, 337484), (476, 269420), (532, 241060), (560, 229007), (595, 215536), (646, 198520), (665, 192848), (680, 188594), (709, 180880), (760, 168742), (952, 134710), (1064, 120530), (1190, 107768), (1292, 99260), (1330, 96424), (1360, 94297), (1418, 90440), (1520, 84371), (1615, 79408), (1904, 67355), (2128, 60265), (2261, 56720), (2380, 53884), (2584, 49630), (2660, 48212), (2836, 45220), (3230, 39704), (3545, 36176), (4522, 28360), (4760, 26942), (4963, 25840), (5168, 24815), (5320, 24106), (5672, 22610), (6460, 19852), (7090, 18088), (9044, 14180), (9520, 13471), (9926, 12920), (10640, 12053), (11305, 11344)]