20996858120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2473}}^1\times {\mathrm{30323}}^1$

素因数の和:32814

約数の個数: 64

約数和(自身を含む): 54015534720

約数和(自身を除く): 33018676600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2473, 4946, 9892, 12365, 17311, 19784, 24730, 30323, 34622, 49460, 60646, 69244, 86555, 98920, 121292, 138488, 151615, 173110, 212261, 242584, 303230, 346220, 424522, 606460, 692440, 849044, 1061305, 1212920, 1698088, 2122610, 4245220, 8490440, 74988779, 149977558, 299955116, 374943895, 524921453, 599910232, 749887790, 1049842906, 1499775580, 2099685812, 2624607265, 2999551160, 4199371624, 5249214530, 10498429060, 20996858120]

約数ペア:

[(1, 20996858120), (2, 10498429060), (4, 5249214530), (5, 4199371624), (7, 2999551160), (8, 2624607265), (10, 2099685812), (14, 1499775580), (20, 1049842906), (28, 749887790), (35, 599910232), (40, 524921453), (56, 374943895), (70, 299955116), (140, 149977558), (280, 74988779), (2473, 8490440), (4946, 4245220), (9892, 2122610), (12365, 1698088), (17311, 1212920), (19784, 1061305), (24730, 849044), (30323, 692440), (34622, 606460), (49460, 424522), (60646, 346220), (69244, 303230), (86555, 242584), (98920, 212261), (121292, 173110), (138488, 151615)]