201981990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{23459}}^1$

素因数の和:23517

約数の個数: 64

約数和(自身を含む): 567544320

約数和(自身を除く): 365562330

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 41, 42, 70, 82, 105, 123, 205, 210, 246, 287, 410, 574, 615, 861, 1230, 1435, 1722, 2870, 4305, 8610, 23459, 46918, 70377, 117295, 140754, 164213, 234590, 328426, 351885, 492639, 703770, 821065, 961819, 985278, 1642130, 1923638, 2463195, 2885457, 4809095, 4926390, 5770914, 6732733, 9618190, 13465466, 14427285, 20198199, 28854570, 33663665, 40396398, 67327330, 100990995, 201981990]

約数ペア:

[(1, 201981990), (2, 100990995), (3, 67327330), (5, 40396398), (6, 33663665), (7, 28854570), (10, 20198199), (14, 14427285), (15, 13465466), (21, 9618190), (30, 6732733), (35, 5770914), (41, 4926390), (42, 4809095), (70, 2885457), (82, 2463195), (105, 1923638), (123, 1642130), (205, 985278), (210, 961819), (246, 821065), (287, 703770), (410, 492639), (574, 351885), (615, 328426), (861, 234590), (1230, 164213), (1435, 140754), (1722, 117295), (2870, 70377), (4305, 46918), (8610, 23459)]