20800304

素因数分解:

$2^4\times 7^2\times {\mathrm{43}}^1\times {\mathrm{617}}^1$

素因数の和:682

約数の個数: 60

約数和(自身を含む): 48048264

約数和(自身を除く): 27247960

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 49, 56, 86, 98, 112, 172, 196, 301, 344, 392, 602, 617, 688, 784, 1204, 1234, 2107, 2408, 2468, 4214, 4319, 4816, 4936, 8428, 8638, 9872, 16856, 17276, 26531, 30233, 33712, 34552, 53062, 60466, 69104, 106124, 120932, 185717, 212248, 241864, 371434, 424496, 483728, 742868, 1300019, 1485736, 2600038, 2971472, 5200076, 10400152, 20800304]

約数ペア:

[(1, 20800304), (2, 10400152), (4, 5200076), (7, 2971472), (8, 2600038), (14, 1485736), (16, 1300019), (28, 742868), (43, 483728), (49, 424496), (56, 371434), (86, 241864), (98, 212248), (112, 185717), (172, 120932), (196, 106124), (301, 69104), (344, 60466), (392, 53062), (602, 34552), (617, 33712), (688, 30233), (784, 26531), (1204, 17276), (1234, 16856), (2107, 9872), (2408, 8638), (2468, 8428), (4214, 4936), (4319, 4816)]