20175897665

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{13177}}^1$

素因数の和:13338

約数の個数: 64

約数和(自身を含む): 31242613248

約数和(自身を除く): 11066715583

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 97, 205, 287, 385, 451, 485, 679, 1067, 1435, 2255, 3157, 3395, 3977, 5335, 7469, 13177, 15785, 19885, 27839, 37345, 43747, 65885, 92239, 139195, 144947, 218735, 306229, 461195, 540257, 724735, 1014629, 1278169, 1531145, 2701285, 3781799, 5073145, 5942827, 6390845, 8947183, 14059859, 18908995, 29714135, 41599789, 44735915, 52404929, 70299295, 98419013, 207998945, 262024645, 366834503, 492095065, 576454219, 1834172515, 2882271095, 4035179533, 20175897665]

約数ペア:

[(1, 20175897665), (5, 4035179533), (7, 2882271095), (11, 1834172515), (35, 576454219), (41, 492095065), (55, 366834503), (77, 262024645), (97, 207998945), (205, 98419013), (287, 70299295), (385, 52404929), (451, 44735915), (485, 41599789), (679, 29714135), (1067, 18908995), (1435, 14059859), (2255, 8947183), (3157, 6390845), (3395, 5942827), (3977, 5073145), (5335, 3781799), (7469, 2701285), (13177, 1531145), (15785, 1278169), (19885, 1014629), (27839, 724735), (37345, 540257), (43747, 461195), (65885, 306229), (92239, 218735), (139195, 144947)]