18619580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{743}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 44997120

約数和(自身を除く): 26377540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 743, 895, 1253, 1486, 1790, 2506, 2972, 3580, 3715, 5012, 5201, 6265, 7430, 10402, 12530, 14860, 20804, 25060, 26005, 52010, 104020, 132997, 265994, 531988, 664985, 930979, 1329970, 1861958, 2659940, 3723916, 4654895, 9309790, 18619580]

約数ペア:

[(1, 18619580), (2, 9309790), (4, 4654895), (5, 3723916), (7, 2659940), (10, 1861958), (14, 1329970), (20, 930979), (28, 664985), (35, 531988), (70, 265994), (140, 132997), (179, 104020), (358, 52010), (716, 26005), (743, 25060), (895, 20804), (1253, 14860), (1486, 12530), (1790, 10402), (2506, 7430), (2972, 6265), (3580, 5201), (3715, 5012)]