978318180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1699}}^1$

素因数の和:2178

約数の個数: 144

約数和(自身を含む): 3400924800

約数和(自身を除く): 2422606620

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, 210, 252, 315, 420, 457, 630, 914, 1260, 1371, 1699, 1828, 2285, 2742, 3199, 3398, 4113, 4570, 5097, 5484, 6398, 6796, 6855, 8226, 8495, 9140, 9597, 10194, 11893, 12796, 13710, 15291, 15995, 16452, 16990, 19194, 20388, 20565, 23786, 25485, 27420, 28791, 30582, 31990, 33980, 35679, 38388, 41130, 47572, 47985, 50970, 57582, 59465, 61164, 63980, 71358, 76455, 82260, 95970, 101940, 107037, 115164, 118930, 142716, 143955, 152910, 178395, 191940, 214074, 237860, 287910, 305820, 356790, 428148, 535185, 575820, 713580, 776443, 1070370, 1552886, 2140740, 2329329, 3105772, 3882215, 4658658, 5435101, 6987987, 7764430, 9317316, 10870202, 11646645, 13975974, 15528860, 16305303, 21740404, 23293290, 27175505, 27951948, 32610606, 34939935, 46586580, 48915909, 54351010, 65221212, 69879870, 81526515, 97831818, 108702020, 139759740, 163053030, 195663636, 244579545, 326106060, 489159090, 978318180]

約数ペア:

[(1, 978318180), (2, 489159090), (3, 326106060), (4, 244579545), (5, 195663636), (6, 163053030), (7, 139759740), (9, 108702020), (10, 97831818), (12, 81526515), (14, 69879870), (15, 65221212), (18, 54351010), (20, 48915909), (21, 46586580), (28, 34939935), (30, 32610606), (35, 27951948), (36, 27175505), (42, 23293290), (45, 21740404), (60, 16305303), (63, 15528860), (70, 13975974), (84, 11646645), (90, 10870202), (105, 9317316), (126, 7764430), (140, 6987987), (180, 5435101), (210, 4658658), (252, 3882215), (315, 3105772), (420, 2329329), (457, 2140740), (630, 1552886), (914, 1070370), (1260, 776443), (1371, 713580), (1699, 575820), (1828, 535185), (2285, 428148), (2742, 356790), (3199, 305820), (3398, 287910), (4113, 237860), (4570, 214074), (5097, 191940), (5484, 178395), (6398, 152910), (6796, 143955), (6855, 142716), (8226, 118930), (8495, 115164), (9140, 107037), (9597, 101940), (10194, 95970), (11893, 82260), (12796, 76455), (13710, 71358), (15291, 63980), (15995, 61164), (16452, 59465), (16990, 57582), (19194, 50970), (20388, 47985), (20565, 47572), (23786, 41130), (25485, 38388), (27420, 35679), (28791, 33980), (30582, 31990)]