78569820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{491}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 275079168

約数和(自身を除く): 196509348

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, 127, 140, 180, 210, 252, 254, 315, 381, 420, 491, 508, 630, 635, 762, 889, 982, 1143, 1260, 1270, 1473, 1524, 1778, 1905, 1964, 2286, 2455, 2540, 2667, 2946, 3437, 3556, 3810, 4419, 4445, 4572, 4910, 5334, 5715, 5892, 6874, 7365, 7620, 8001, 8838, 8890, 9820, 10311, 10668, 11430, 13335, 13748, 14730, 16002, 17185, 17676, 17780, 20622, 22095, 22860, 26670, 29460, 30933, 32004, 34370, 40005, 41244, 44190, 51555, 53340, 61866, 62357, 68740, 80010, 88380, 103110, 123732, 124714, 154665, 160020, 187071, 206220, 249428, 309330, 311785, 374142, 436499, 561213, 618660, 623570, 748284, 872998, 935355, 1122426, 1247140, 1309497, 1745996, 1870710, 2182495, 2244852, 2618994, 2806065, 3741420, 3928491, 4364990, 5237988, 5612130, 6547485, 7856982, 8729980, 11224260, 13094970, 15713964, 19642455, 26189940, 39284910, 78569820]

約数ペア:

[(1, 78569820), (2, 39284910), (3, 26189940), (4, 19642455), (5, 15713964), (6, 13094970), (7, 11224260), (9, 8729980), (10, 7856982), (12, 6547485), (14, 5612130), (15, 5237988), (18, 4364990), (20, 3928491), (21, 3741420), (28, 2806065), (30, 2618994), (35, 2244852), (36, 2182495), (42, 1870710), (45, 1745996), (60, 1309497), (63, 1247140), (70, 1122426), (84, 935355), (90, 872998), (105, 748284), (126, 623570), (127, 618660), (140, 561213), (180, 436499), (210, 374142), (252, 311785), (254, 309330), (315, 249428), (381, 206220), (420, 187071), (491, 160020), (508, 154665), (630, 124714), (635, 123732), (762, 103110), (889, 88380), (982, 80010), (1143, 68740), (1260, 62357), (1270, 61866), (1473, 53340), (1524, 51555), (1778, 44190), (1905, 41244), (1964, 40005), (2286, 34370), (2455, 32004), (2540, 30933), (2667, 29460), (2946, 26670), (3437, 22860), (3556, 22095), (3810, 20622), (4419, 17780), (4445, 17676), (4572, 17185), (4910, 16002), (5334, 14730), (5715, 13748), (5892, 13335), (6874, 11430), (7365, 10668), (7620, 10311), (8001, 9820), (8838, 8890)]