20481510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{13933}}^1$

素因数の和:13957

約数の個数: 48

約数和(自身を含む): 57185136

約数和(自身を除く): 36703626

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 13933, 27866, 41799, 69665, 83598, 97531, 139330, 195062, 208995, 292593, 417990, 487655, 585186, 682717, 975310, 1365434, 1462965, 2048151, 2925930, 3413585, 4096302, 6827170, 10240755, 20481510]

約数ペア:

[(1, 20481510), (2, 10240755), (3, 6827170), (5, 4096302), (6, 3413585), (7, 2925930), (10, 2048151), (14, 1462965), (15, 1365434), (21, 975310), (30, 682717), (35, 585186), (42, 487655), (49, 417990), (70, 292593), (98, 208995), (105, 195062), (147, 139330), (210, 97531), (245, 83598), (294, 69665), (490, 41799), (735, 27866), (1470, 13933)]