30878820

素因数分解:

$2^2\times 3^4\times 5^1\times 7^2\times {\mathrm{389}}^1$

素因数の和:424

約数の個数: 180

約数和(自身を含む): 112972860

約数和(自身を除く): 82094040

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 81, 84, 90, 98, 105, 108, 126, 135, 140, 147, 162, 180, 189, 196, 210, 245, 252, 270, 294, 315, 324, 378, 389, 405, 420, 441, 490, 540, 567, 588, 630, 735, 756, 778, 810, 882, 945, 980, 1134, 1167, 1260, 1323, 1470, 1556, 1620, 1764, 1890, 1945, 2205, 2268, 2334, 2646, 2723, 2835, 2940, 3501, 3780, 3890, 3969, 4410, 4668, 5292, 5446, 5670, 5835, 6615, 7002, 7780, 7938, 8169, 8820, 10503, 10892, 11340, 11670, 13230, 13615, 14004, 15876, 16338, 17505, 19061, 19845, 21006, 23340, 24507, 26460, 27230, 31509, 32676, 35010, 38122, 39690, 40845, 42012, 49014, 52515, 54460, 57183, 63018, 70020, 73521, 76244, 79380, 81690, 95305, 98028, 105030, 114366, 122535, 126036, 147042, 157545, 163380, 171549, 190610, 210060, 220563, 228732, 245070, 285915, 294084, 315090, 343098, 367605, 381220, 441126, 490140, 514647, 571830, 630180, 686196, 735210, 857745, 882252, 1029294, 1102815, 1143660, 1470420, 1543941, 1715490, 2058588, 2205630, 2573235, 3087882, 3430980, 4411260, 5146470, 6175764, 7719705, 10292940, 15439410, 30878820]

約数ペア:

[(1, 30878820), (2, 15439410), (3, 10292940), (4, 7719705), (5, 6175764), (6, 5146470), (7, 4411260), (9, 3430980), (10, 3087882), (12, 2573235), (14, 2205630), (15, 2058588), (18, 1715490), (20, 1543941), (21, 1470420), (27, 1143660), (28, 1102815), (30, 1029294), (35, 882252), (36, 857745), (42, 735210), (45, 686196), (49, 630180), (54, 571830), (60, 514647), (63, 490140), (70, 441126), (81, 381220), (84, 367605), (90, 343098), (98, 315090), (105, 294084), (108, 285915), (126, 245070), (135, 228732), (140, 220563), (147, 210060), (162, 190610), (180, 171549), (189, 163380), (196, 157545), (210, 147042), (245, 126036), (252, 122535), (270, 114366), (294, 105030), (315, 98028), (324, 95305), (378, 81690), (389, 79380), (405, 76244), (420, 73521), (441, 70020), (490, 63018), (540, 57183), (567, 54460), (588, 52515), (630, 49014), (735, 42012), (756, 40845), (778, 39690), (810, 38122), (882, 35010), (945, 32676), (980, 31509), (1134, 27230), (1167, 26460), (1260, 24507), (1323, 23340), (1470, 21006), (1556, 19845), (1620, 19061), (1764, 17505), (1890, 16338), (1945, 15876), (2205, 14004), (2268, 13615), (2334, 13230), (2646, 11670), (2723, 11340), (2835, 10892), (2940, 10503), (3501, 8820), (3780, 8169), (3890, 7938), (3969, 7780), (4410, 7002), (4668, 6615), (5292, 5835), (5446, 5670)]