20131781215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{3331}}^1$

素因数の和:3752

約数の個数: 64

約数和(自身を含む): 30630942720

約数和(自身を除く): 10499161505

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 359, 455, 481, 1295, 1795, 2405, 2513, 3331, 3367, 4667, 12565, 13283, 16655, 16835, 23317, 23335, 32669, 43303, 66415, 92981, 116585, 123247, 163345, 172679, 216515, 303121, 464905, 616235, 862729, 863395, 1195829, 1208753, 1515605, 1602211, 4313645, 5979145, 6043765, 8011055, 8370803, 11215477, 15545777, 41854015, 44245673, 56077385, 77728885, 108820439, 221228365, 309719711, 544102195, 575193749, 1548598555, 2875968745, 4026356243, 20131781215]

約数ペア:

[(1, 20131781215), (5, 4026356243), (7, 2875968745), (13, 1548598555), (35, 575193749), (37, 544102195), (65, 309719711), (91, 221228365), (185, 108820439), (259, 77728885), (359, 56077385), (455, 44245673), (481, 41854015), (1295, 15545777), (1795, 11215477), (2405, 8370803), (2513, 8011055), (3331, 6043765), (3367, 5979145), (4667, 4313645), (12565, 1602211), (13283, 1515605), (16655, 1208753), (16835, 1195829), (23317, 863395), (23335, 862729), (32669, 616235), (43303, 464905), (66415, 303121), (92981, 216515), (116585, 172679), (123247, 163345)]