81346860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:453

約数の個数: 216

約数和(自身を含む): 300265056

約数和(自身を除く): 218918196

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 49, 60, 63, 69, 70, 84, 90, 92, 98, 105, 115, 126, 138, 140, 147, 161, 180, 196, 207, 210, 230, 245, 252, 276, 294, 315, 322, 345, 401, 414, 420, 441, 460, 483, 490, 588, 630, 644, 690, 735, 802, 805, 828, 882, 966, 980, 1035, 1127, 1203, 1260, 1380, 1449, 1470, 1604, 1610, 1764, 1932, 2005, 2070, 2205, 2254, 2406, 2415, 2807, 2898, 2940, 3220, 3381, 3609, 4010, 4140, 4410, 4508, 4812, 4830, 5614, 5635, 5796, 6015, 6762, 7218, 7245, 8020, 8421, 8820, 9223, 9660, 10143, 11228, 11270, 12030, 13524, 14035, 14436, 14490, 16842, 16905, 18045, 18446, 19649, 20286, 22540, 24060, 25263, 27669, 28070, 28980, 33684, 33810, 36090, 36892, 39298, 40572, 42105, 46115, 50526, 50715, 55338, 56140, 58947, 64561, 67620, 72180, 78596, 83007, 84210, 92230, 98245, 101052, 101430, 110676, 117894, 126315, 129122, 138345, 166014, 168420, 176841, 184460, 193683, 196490, 202860, 235788, 252630, 258244, 276690, 294735, 322805, 332028, 353682, 387366, 392980, 415035, 451927, 505260, 553380, 581049, 589470, 645610, 707364, 774732, 830070, 884205, 903854, 968415, 1162098, 1178940, 1291220, 1355781, 1660140, 1768410, 1807708, 1936830, 2259635, 2324196, 2711562, 2905245, 3536820, 3873660, 4067343, 4519270, 5423124, 5810490, 6778905, 8134686, 9038540, 11620980, 13557810, 16269372, 20336715, 27115620, 40673430, 81346860]

約数ペア:

[(1, 81346860), (2, 40673430), (3, 27115620), (4, 20336715), (5, 16269372), (6, 13557810), (7, 11620980), (9, 9038540), (10, 8134686), (12, 6778905), (14, 5810490), (15, 5423124), (18, 4519270), (20, 4067343), (21, 3873660), (23, 3536820), (28, 2905245), (30, 2711562), (35, 2324196), (36, 2259635), (42, 1936830), (45, 1807708), (46, 1768410), (49, 1660140), (60, 1355781), (63, 1291220), (69, 1178940), (70, 1162098), (84, 968415), (90, 903854), (92, 884205), (98, 830070), (105, 774732), (115, 707364), (126, 645610), (138, 589470), (140, 581049), (147, 553380), (161, 505260), (180, 451927), (196, 415035), (207, 392980), (210, 387366), (230, 353682), (245, 332028), (252, 322805), (276, 294735), (294, 276690), (315, 258244), (322, 252630), (345, 235788), (401, 202860), (414, 196490), (420, 193683), (441, 184460), (460, 176841), (483, 168420), (490, 166014), (588, 138345), (630, 129122), (644, 126315), (690, 117894), (735, 110676), (802, 101430), (805, 101052), (828, 98245), (882, 92230), (966, 84210), (980, 83007), (1035, 78596), (1127, 72180), (1203, 67620), (1260, 64561), (1380, 58947), (1449, 56140), (1470, 55338), (1604, 50715), (1610, 50526), (1764, 46115), (1932, 42105), (2005, 40572), (2070, 39298), (2205, 36892), (2254, 36090), (2406, 33810), (2415, 33684), (2807, 28980), (2898, 28070), (2940, 27669), (3220, 25263), (3381, 24060), (3609, 22540), (4010, 20286), (4140, 19649), (4410, 18446), (4508, 18045), (4812, 16905), (4830, 16842), (5614, 14490), (5635, 14436), (5796, 14035), (6015, 13524), (6762, 12030), (7218, 11270), (7245, 11228), (8020, 10143), (8421, 9660), (8820, 9223)]