16720620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{971}}^1$

素因数の和:1031

約数の個数: 96

約数和(自身を含む): 54867456

約数和(自身を除く): 38146836

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 41, 42, 60, 70, 82, 84, 105, 123, 140, 164, 205, 210, 246, 287, 410, 420, 492, 574, 615, 820, 861, 971, 1148, 1230, 1435, 1722, 1942, 2460, 2870, 2913, 3444, 3884, 4305, 4855, 5740, 5826, 6797, 8610, 9710, 11652, 13594, 14565, 17220, 19420, 20391, 27188, 29130, 33985, 39811, 40782, 58260, 67970, 79622, 81564, 101955, 119433, 135940, 159244, 199055, 203910, 238866, 278677, 398110, 407820, 477732, 557354, 597165, 796220, 836031, 1114708, 1194330, 1393385, 1672062, 2388660, 2786770, 3344124, 4180155, 5573540, 8360310, 16720620]

約数ペア:

[(1, 16720620), (2, 8360310), (3, 5573540), (4, 4180155), (5, 3344124), (6, 2786770), (7, 2388660), (10, 1672062), (12, 1393385), (14, 1194330), (15, 1114708), (20, 836031), (21, 796220), (28, 597165), (30, 557354), (35, 477732), (41, 407820), (42, 398110), (60, 278677), (70, 238866), (82, 203910), (84, 199055), (105, 159244), (123, 135940), (140, 119433), (164, 101955), (205, 81564), (210, 79622), (246, 67970), (287, 58260), (410, 40782), (420, 39811), (492, 33985), (574, 29130), (615, 27188), (820, 20391), (861, 19420), (971, 17220), (1148, 14565), (1230, 13594), (1435, 11652), (1722, 9710), (1942, 8610), (2460, 6797), (2870, 5826), (2913, 5740), (3444, 4855), (3884, 4305)]