261324840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^4\times {\mathrm{907}}^1$

素因数の和:949

約数の個数: 160

約数和(自身を含む): 915590880

約数和(自身を除く): 654266040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 490, 588, 686, 735, 840, 907, 980, 1029, 1176, 1372, 1470, 1715, 1814, 1960, 2058, 2401, 2721, 2744, 2940, 3430, 3628, 4116, 4535, 4802, 5145, 5442, 5880, 6349, 6860, 7203, 7256, 8232, 9070, 9604, 10290, 10884, 12005, 12698, 13605, 13720, 14406, 18140, 19047, 19208, 20580, 21768, 24010, 25396, 27210, 28812, 31745, 36015, 36280, 38094, 41160, 44443, 48020, 50792, 54420, 57624, 63490, 72030, 76188, 88886, 95235, 96040, 108840, 126980, 133329, 144060, 152376, 177772, 190470, 222215, 253960, 266658, 288120, 311101, 355544, 380940, 444430, 533316, 622202, 666645, 761880, 888860, 933303, 1066632, 1244404, 1333290, 1555505, 1777720, 1866606, 2177707, 2488808, 2666580, 3111010, 3733212, 4355414, 4666515, 5333160, 6222020, 6533121, 7466424, 8710828, 9333030, 10888535, 12444040, 13066242, 17421656, 18666060, 21777070, 26132484, 32665605, 37332120, 43554140, 52264968, 65331210, 87108280, 130662420, 261324840]

約数ペア:

[(1, 261324840), (2, 130662420), (3, 87108280), (4, 65331210), (5, 52264968), (6, 43554140), (7, 37332120), (8, 32665605), (10, 26132484), (12, 21777070), (14, 18666060), (15, 17421656), (20, 13066242), (21, 12444040), (24, 10888535), (28, 9333030), (30, 8710828), (35, 7466424), (40, 6533121), (42, 6222020), (49, 5333160), (56, 4666515), (60, 4355414), (70, 3733212), (84, 3111010), (98, 2666580), (105, 2488808), (120, 2177707), (140, 1866606), (147, 1777720), (168, 1555505), (196, 1333290), (210, 1244404), (245, 1066632), (280, 933303), (294, 888860), (343, 761880), (392, 666645), (420, 622202), (490, 533316), (588, 444430), (686, 380940), (735, 355544), (840, 311101), (907, 288120), (980, 266658), (1029, 253960), (1176, 222215), (1372, 190470), (1470, 177772), (1715, 152376), (1814, 144060), (1960, 133329), (2058, 126980), (2401, 108840), (2721, 96040), (2744, 95235), (2940, 88886), (3430, 76188), (3628, 72030), (4116, 63490), (4535, 57624), (4802, 54420), (5145, 50792), (5442, 48020), (5880, 44443), (6349, 41160), (6860, 38094), (7203, 36280), (7256, 36015), (8232, 31745), (9070, 28812), (9604, 27210), (10290, 25396), (10884, 24010), (12005, 21768), (12698, 20580), (13605, 19208), (13720, 19047), (14406, 18140)]