20840719935

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{4091}}^1$

素因数の和:4381

約数の個数: 96

約数和(自身を含む): 40304563200

約数和(自身を除く): 19463843265

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 239, 245, 435, 609, 717, 735, 1015, 1195, 1421, 1673, 3045, 3585, 4091, 4263, 5019, 6931, 7105, 8365, 11711, 12273, 20455, 20793, 21315, 25095, 28637, 34655, 35133, 48517, 58555, 61365, 85911, 103965, 118639, 143185, 145551, 175665, 200459, 242585, 339619, 355917, 429555, 593195, 601377, 727755, 830473, 977749, 1002295, 1018857, 1698095, 1779585, 2491419, 2933247, 3006885, 4152365, 4888745, 5094285, 5813311, 6844243, 12457095, 14666235, 17439933, 20532729, 28354721, 29066555, 34221215, 47909701, 85064163, 87199665, 102663645, 141773605, 143729103, 198483047, 239548505, 425320815, 595449141, 718645515, 992415235, 1389381329, 2977245705, 4168143987, 6946906645, 20840719935]

約数ペア:

[(1, 20840719935), (3, 6946906645), (5, 4168143987), (7, 2977245705), (15, 1389381329), (21, 992415235), (29, 718645515), (35, 595449141), (49, 425320815), (87, 239548505), (105, 198483047), (145, 143729103), (147, 141773605), (203, 102663645), (239, 87199665), (245, 85064163), (435, 47909701), (609, 34221215), (717, 29066555), (735, 28354721), (1015, 20532729), (1195, 17439933), (1421, 14666235), (1673, 12457095), (3045, 6844243), (3585, 5813311), (4091, 5094285), (4263, 4888745), (5019, 4152365), (6931, 3006885), (7105, 2933247), (8365, 2491419), (11711, 1779585), (12273, 1698095), (20455, 1018857), (20793, 1002295), (21315, 977749), (25095, 830473), (28637, 727755), (34655, 601377), (35133, 593195), (48517, 429555), (58555, 355917), (61365, 339619), (85911, 242585), (103965, 200459), (118639, 175665), (143185, 145551)]