80038980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:618

約数の個数: 144

約数和(自身を含む): 280076160

約数和(自身を除く): 200037180

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 139, 140, 180, 210, 252, 278, 315, 417, 420, 457, 556, 630, 695, 834, 914, 973, 1251, 1260, 1371, 1390, 1668, 1828, 1946, 2085, 2285, 2502, 2742, 2780, 2919, 3199, 3892, 4113, 4170, 4570, 4865, 5004, 5484, 5838, 6255, 6398, 6855, 8226, 8340, 8757, 9140, 9597, 9730, 11676, 12510, 12796, 13710, 14595, 15995, 16452, 17514, 19194, 19460, 20565, 25020, 27420, 28791, 29190, 31990, 35028, 38388, 41130, 43785, 47985, 57582, 58380, 63523, 63980, 82260, 87570, 95970, 115164, 127046, 143955, 175140, 190569, 191940, 254092, 287910, 317615, 381138, 444661, 571707, 575820, 635230, 762276, 889322, 952845, 1143414, 1270460, 1333983, 1778644, 1905690, 2223305, 2286828, 2667966, 2858535, 3811380, 4001949, 4446610, 5335932, 5717070, 6669915, 8003898, 8893220, 11434140, 13339830, 16007796, 20009745, 26679660, 40019490, 80038980]

約数ペア:

[(1, 80038980), (2, 40019490), (3, 26679660), (4, 20009745), (5, 16007796), (6, 13339830), (7, 11434140), (9, 8893220), (10, 8003898), (12, 6669915), (14, 5717070), (15, 5335932), (18, 4446610), (20, 4001949), (21, 3811380), (28, 2858535), (30, 2667966), (35, 2286828), (36, 2223305), (42, 1905690), (45, 1778644), (60, 1333983), (63, 1270460), (70, 1143414), (84, 952845), (90, 889322), (105, 762276), (126, 635230), (139, 575820), (140, 571707), (180, 444661), (210, 381138), (252, 317615), (278, 287910), (315, 254092), (417, 191940), (420, 190569), (457, 175140), (556, 143955), (630, 127046), (695, 115164), (834, 95970), (914, 87570), (973, 82260), (1251, 63980), (1260, 63523), (1371, 58380), (1390, 57582), (1668, 47985), (1828, 43785), (1946, 41130), (2085, 38388), (2285, 35028), (2502, 31990), (2742, 29190), (2780, 28791), (2919, 27420), (3199, 25020), (3892, 20565), (4113, 19460), (4170, 19194), (4570, 17514), (4865, 16452), (5004, 15995), (5484, 14595), (5838, 13710), (6255, 12796), (6398, 12510), (6855, 11676), (8226, 9730), (8340, 9597), (8757, 9140)]