78685740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:536

約数の個数: 144

約数和(自身を含む): 275026752

約数和(自身を除く): 196341012

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, 140, 180, 197, 210, 252, 315, 317, 394, 420, 591, 630, 634, 788, 951, 985, 1182, 1260, 1268, 1379, 1585, 1773, 1902, 1970, 2219, 2364, 2758, 2853, 2955, 3170, 3546, 3804, 3940, 4137, 4438, 4755, 5516, 5706, 5910, 6340, 6657, 6895, 7092, 8274, 8865, 8876, 9510, 11095, 11412, 11820, 12411, 13314, 13790, 14265, 16548, 17730, 19020, 19971, 20685, 22190, 24822, 26628, 27580, 28530, 33285, 35460, 39942, 41370, 44380, 49644, 57060, 62055, 62449, 66570, 79884, 82740, 99855, 124110, 124898, 133140, 187347, 199710, 248220, 249796, 312245, 374694, 399420, 437143, 562041, 624490, 749388, 874286, 936735, 1124082, 1248980, 1311429, 1748572, 1873470, 2185715, 2248164, 2622858, 2810205, 3746940, 3934287, 4371430, 5245716, 5620410, 6557145, 7868574, 8742860, 11240820, 13114290, 15737148, 19671435, 26228580, 39342870, 78685740]

約数ペア:

[(1, 78685740), (2, 39342870), (3, 26228580), (4, 19671435), (5, 15737148), (6, 13114290), (7, 11240820), (9, 8742860), (10, 7868574), (12, 6557145), (14, 5620410), (15, 5245716), (18, 4371430), (20, 3934287), (21, 3746940), (28, 2810205), (30, 2622858), (35, 2248164), (36, 2185715), (42, 1873470), (45, 1748572), (60, 1311429), (63, 1248980), (70, 1124082), (84, 936735), (90, 874286), (105, 749388), (126, 624490), (140, 562041), (180, 437143), (197, 399420), (210, 374694), (252, 312245), (315, 249796), (317, 248220), (394, 199710), (420, 187347), (591, 133140), (630, 124898), (634, 124110), (788, 99855), (951, 82740), (985, 79884), (1182, 66570), (1260, 62449), (1268, 62055), (1379, 57060), (1585, 49644), (1773, 44380), (1902, 41370), (1970, 39942), (2219, 35460), (2364, 33285), (2758, 28530), (2853, 27580), (2955, 26628), (3170, 24822), (3546, 22190), (3804, 20685), (3940, 19971), (4137, 19020), (4438, 17730), (4755, 16548), (5516, 14265), (5706, 13790), (5910, 13314), (6340, 12411), (6657, 11820), (6895, 11412), (7092, 11095), (8274, 9510), (8865, 8876)]