20744360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:211

約数の個数: 128

約数和(自身を含む): 59270400

約数和(自身を除く): 38526040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 41, 52, 56, 65, 70, 82, 91, 104, 130, 139, 140, 164, 182, 205, 260, 278, 280, 287, 328, 364, 410, 455, 520, 533, 556, 574, 695, 728, 820, 910, 973, 1066, 1112, 1148, 1390, 1435, 1640, 1807, 1820, 1946, 2132, 2296, 2665, 2780, 2870, 3614, 3640, 3731, 3892, 4264, 4865, 5330, 5560, 5699, 5740, 7228, 7462, 7784, 9035, 9730, 10660, 11398, 11480, 12649, 14456, 14924, 18070, 18655, 19460, 21320, 22796, 25298, 28495, 29848, 36140, 37310, 38920, 39893, 45592, 50596, 56990, 63245, 72280, 74087, 74620, 79786, 101192, 113980, 126490, 148174, 149240, 159572, 199465, 227960, 252980, 296348, 319144, 370435, 398930, 505960, 518609, 592696, 740870, 797860, 1037218, 1481740, 1595720, 2074436, 2593045, 2963480, 4148872, 5186090, 10372180, 20744360]

約数ペア:

[(1, 20744360), (2, 10372180), (4, 5186090), (5, 4148872), (7, 2963480), (8, 2593045), (10, 2074436), (13, 1595720), (14, 1481740), (20, 1037218), (26, 797860), (28, 740870), (35, 592696), (40, 518609), (41, 505960), (52, 398930), (56, 370435), (65, 319144), (70, 296348), (82, 252980), (91, 227960), (104, 199465), (130, 159572), (139, 149240), (140, 148174), (164, 126490), (182, 113980), (205, 101192), (260, 79786), (278, 74620), (280, 74087), (287, 72280), (328, 63245), (364, 56990), (410, 50596), (455, 45592), (520, 39893), (533, 38920), (556, 37310), (574, 36140), (695, 29848), (728, 28495), (820, 25298), (910, 22796), (973, 21320), (1066, 19460), (1112, 18655), (1148, 18070), (1390, 14924), (1435, 14456), (1640, 12649), (1807, 11480), (1820, 11398), (1946, 10660), (2132, 9730), (2296, 9035), (2665, 7784), (2780, 7462), (2870, 7228), (3614, 5740), (3640, 5699), (3731, 5560), (3892, 5330), (4264, 4865)]