20072780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1$

素因数の和:339

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 33270580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 41, 52, 65, 70, 82, 91, 130, 140, 164, 182, 205, 260, 269, 287, 364, 410, 455, 533, 538, 574, 820, 910, 1066, 1076, 1148, 1345, 1435, 1820, 1883, 2132, 2665, 2690, 2870, 3497, 3731, 3766, 5330, 5380, 5740, 6994, 7462, 7532, 9415, 10660, 11029, 13988, 14924, 17485, 18655, 18830, 22058, 24479, 34970, 37310, 37660, 44116, 48958, 55145, 69940, 74620, 77203, 97916, 110290, 122395, 143377, 154406, 220580, 244790, 286754, 308812, 386015, 489580, 573508, 716885, 772030, 1003639, 1433770, 1544060, 2007278, 2867540, 4014556, 5018195, 10036390, 20072780]

約数ペア:

[(1, 20072780), (2, 10036390), (4, 5018195), (5, 4014556), (7, 2867540), (10, 2007278), (13, 1544060), (14, 1433770), (20, 1003639), (26, 772030), (28, 716885), (35, 573508), (41, 489580), (52, 386015), (65, 308812), (70, 286754), (82, 244790), (91, 220580), (130, 154406), (140, 143377), (164, 122395), (182, 110290), (205, 97916), (260, 77203), (269, 74620), (287, 69940), (364, 55145), (410, 48958), (455, 44116), (533, 37660), (538, 37310), (574, 34970), (820, 24479), (910, 22058), (1066, 18830), (1076, 18655), (1148, 17485), (1345, 14924), (1435, 13988), (1820, 11029), (1883, 10660), (2132, 9415), (2665, 7532), (2690, 7462), (2870, 6994), (3497, 5740), (3731, 5380), (3766, 5330)]